What is the weather in Williamson right now?

Current weather in Williamson is scattered clouds.

Where can I find the hourly weather forecast for Williamson?

This page shows hourly weather forecast for Williamson, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Williamson updated regularly?

Weather data for Williamson is updated regularly with the latest available observations and forecasts.

Now · 8:44 AM

Williamson Weather & Hourly Forecast

United States · Illinois · 62088

64°F

Partly cloudy

Feels like: 60°F

💧 Humidity 74% 🌡 Pressure 30.18 inHg 💨 Wind 10 mph 👁 Visibility 19.0 mi ☁ Clouds 62% ☀️ UV index 0.1 · Low 🌅 Sunrise 6:45 AM 🌇 Sunset 6:57 PM

Hourly Forecast for Williamson

Today

9:00 AM

Partly cloudy

64° 💧 0.000 in 💨 10 mph H 74%30.18 inHg

12:00 PM

Overcast

70° 💧 None 💨 7 mph H 61%30.18 inHg

3:00 PM

Mostly cloudy

72° 💧 None 💨 9 mph H 57%30.15 inHg

6:00 PM

Overcast

70° 💧 None 💨 9 mph H 57%30.15 inHg

9:00 PM

Partly cloudy night

66° 💧 None 💨 9 mph H 62%30.18 inHg

Tomorrow

12:00 AM

Clear night

61° 💧 0.000 in 💨 8 mph H 73%30.21 inHg

3:00 AM

Mostly clear night

58° 💧 None 💨 7 mph H 85%30.21 inHg

6:00 AM

Mostly cloudy night

59° 💧 None 💨 6 mph H 88%30.24 inHg

9:00 AM

Mostly cloudy

64° 💧 0.002 in 💨 9 mph H 74%30.27 inHg

12:00 PM

Overcast

69° 💧 0.004 in 💨 8 mph H 61%30.27 inHg

3:00 PM

Overcast

71° 💧 0.001 in 💨 9 mph H 58%30.24 inHg

6:00 PM

Overcast

68° 💧 None 💨 10 mph H 65%30.21 inHg

9:00 PM

Overcast night

66° 💧 None 💨 9 mph H 71%30.24 inHg

Thursday

12:00 AM

Overcast night

64° 💧 None 💨 6 mph H 76%30.24 inHg

3:00 AM

Overcast night

63° 💧 None 💨 6 mph H 80%30.24 inHg

6:00 AM

Mostly cloudy night

61° 💧 None 💨 7 mph H 82%30.24 inHg

Today

9:00 AM

Partly cloudy

64° 💧 None 💨 10 mph H 74%30.18 inHg

10:00 AM

Partly cloudy

66° 💧 0.000 in 💨 9 mph H 70%30.18 inHg

11:00 AM

Partly cloudy

68° 💧 None 💨 8 mph H 66%30.18 inHg

12:00 PM

Overcast

70° 💧 None 💨 7 mph H 61%30.18 inHg

1:00 PM

Overcast

70° 💧 None 💨 8 mph H 59%30.18 inHg

2:00 PM

Overcast

71° 💧 None 💨 8 mph H 58%30.15 inHg

3:00 PM

Mostly cloudy

72° 💧 None 💨 9 mph H 57%30.15 inHg

4:00 PM

Overcast

72° 💧 None 💨 9 mph H 56%30.12 inHg

5:00 PM

Overcast

71° 💧 None 💨 9 mph H 57%30.12 inHg

6:00 PM

Overcast

70° 💧 None 💨 9 mph H 57%30.15 inHg

7:00 PM

Overcast night

68° 💧 None 💨 9 mph H 60%30.15 inHg

8:00 PM

Mostly cloudy night

67° 💧 None 💨 10 mph H 61%30.15 inHg

9:00 PM

Partly cloudy night

66° 💧 None 💨 9 mph H 62%30.18 inHg

10:00 PM

Mostly cloudy night

64° 💧 None 💨 8 mph H 66%30.21 inHg

11:00 PM

Clear night

63° 💧 None 💨 8 mph H 70%30.21 inHg

Tomorrow

12:00 AM

Clear night

61° 💧 None 💨 8 mph H 73%30.21 inHg

1:00 AM

Clear night

60° 💧 0.000 in 💨 8 mph H 77%30.21 inHg

2:00 AM

Clear night

59° 💧 None 💨 7 mph H 81%30.21 inHg

3:00 AM

Mostly clear night

58° 💧 None 💨 7 mph H 85%30.21 inHg

4:00 AM

Mostly cloudy night

58° 💧 None 💨 6 mph H 87%30.21 inHg

5:00 AM

Mostly cloudy night

58° 💧 None 💨 6 mph H 87%30.21 inHg

6:00 AM

Mostly cloudy night

59° 💧 None 💨 6 mph H 88%30.24 inHg

7:00 AM

Mostly cloudy

59° 💧 None 💨 7 mph H 88%30.24 inHg

8:00 AM

Mostly cloudy

61° 💧 None 💨 7 mph H 82%30.27 inHg

9:00 AM

Mostly cloudy

64° 💧 None 💨 9 mph H 74%30.27 inHg

10:00 AM

Mostly cloudy

66° 💧 0.001 in 💨 10 mph H 67%30.27 inHg

11:00 AM

Overcast

67° 💧 0.002 in 💨 9 mph H 64%30.27 inHg

12:00 PM

Overcast

69° 💧 0.001 in 💨 8 mph H 61%30.27 inHg

1:00 PM

Overcast

70° 💧 0.001 in 💨 9 mph H 59%30.27 inHg

2:00 PM

Overcast

71° 💧 0.002 in 💨 9 mph H 58%30.24 inHg

3:00 PM

Overcast

71° 💧 None 💨 9 mph H 58%30.24 inHg

4:00 PM

Overcast

71° 💧 0.001 in 💨 10 mph H 60%30.21 inHg

5:00 PM

Mostly cloudy

70° 💧 None 💨 10 mph H 62%30.21 inHg

6:00 PM

Overcast

68° 💧 None 💨 10 mph H 65%30.21 inHg

7:00 PM

Overcast night

67° 💧 None 💨 8 mph H 69%30.24 inHg

8:00 PM

Overcast night

66° 💧 None 💨 8 mph H 71%30.24 inHg

9:00 PM

Overcast night

66° 💧 None 💨 9 mph H 71%30.24 inHg

10:00 PM

Overcast night

65° 💧 None 💨 8 mph H 72%30.24 inHg

11:00 PM

Overcast night

65° 💧 None 💨 7 mph H 74%30.24 inHg

Thursday

12:00 AM

Overcast night

64° 💧 None 💨 6 mph H 76%30.24 inHg

1:00 AM

Overcast night

64° 💧 None 💨 5 mph H 78%30.24 inHg

2:00 AM

Overcast night

64° 💧 None 💨 5 mph H 79%30.24 inHg

3:00 AM

Overcast night

63° 💧 None 💨 6 mph H 80%30.24 inHg

4:00 AM

Overcast night

63° 💧 None 💨 6 mph H 81%30.24 inHg

5:00 AM

Mostly cloudy night

62° 💧 None 💨 7 mph H 81%30.24 inHg

6:00 AM

Mostly cloudy night

61° 💧 None 💨 7 mph H 82%30.24 inHg

7:00 AM

Overcast

61° 💧 None 💨 7 mph H 83%30.27 inHg

8:00 AM

Mostly sunny

61° 💧 None 💨 7 mph H 82%30.27 inHg

9:00 AM

Partly cloudy

63° 💧 None 💨 6 mph H 76%30.27 inHg

10:00 AM

Overcast

67° 💧 None 💨 7 mph H 68%30.27 inHg

11:00 AM

Mostly cloudy

69° 💧 None 💨 6 mph H 63%30.27 inHg

12:00 PM

Mostly cloudy

71° 💧 None 💨 6 mph H 57%30.24 inHg

1:00 PM

Overcast

74° 💧 None 💨 5 mph H 52%30.24 inHg

2:00 PM

Overcast

73° 💧 None 💨 5 mph H 53%30.21 inHg

3:00 PM

Overcast

73° 💧 None 💨 5 mph H 54%30.21 inHg

4:00 PM

Overcast

73° 💧 0.001 in 💨 6 mph H 55%30.21 inHg

5:00 PM

Mostly cloudy

73° 💧 None 💨 6 mph H 56%30.18 inHg

6:00 PM

Mostly cloudy

72° 💧 None 💨 7 mph H 57%30.18 inHg

7:00 PM

Mostly cloudy night

70° 💧 None 💨 5 mph H 63%30.21 inHg

Friday

4:00 AM

Partly cloudy night

61° 💧 None 💨 5 mph H 90%30.21 inHg

7:00 AM

Overcast

62° 💧 None 💨 6 mph H 91%30.24 inHg

10:00 AM

Overcast

69° 💧 None 💨 7 mph H 68%30.24 inHg

1:00 PM

Mostly cloudy

73° 💧 None 💨 6 mph H 59%30.24 inHg

4:00 PM

Overcast

74° 💧 None 💨 6 mph H 54%30.18 inHg

7:00 PM

Mostly cloudy night

70° 💧 None 💨 4 mph H 63%30.15 inHg

10:00 PM

Overcast night

66° 💧 None 💨 6 mph H 65%30.21 inHg

Saturday

1:00 AM

Overcast night

64° 💧 None 💨 8 mph H 61%30.18 inHg

4:00 AM

Mostly cloudy night

61° 💧 None 💨 7 mph H 60%30.15 inHg

7:00 AM

Overcast

59° 💧 None 💨 6 mph H 66%30.18 inHg

10:00 AM

Overcast

63° 💧 None 💨 7 mph H 59%30.21 inHg

1:00 PM

Overcast

70° 💧 None 💨 8 mph H 47%30.15 inHg

4:00 PM

Overcast

70° 💧 None 💨 6 mph H 46%30.12 inHg

7:00 PM

Overcast night

66° 💧 None 💨 4 mph H 58%30.09 inHg

10:00 PM

Overcast night

65° 💧 None 💨 6 mph H 61%30.09 inHg

Sunday

1:00 AM

Overcast night

63° 💧 None 💨 5 mph H 62%30.09 inHg

4:00 AM

Overcast night

62° 💧 None 💨 6 mph H 67%30.06 inHg

7:00 AM

Mostly sunny

59° 💧 None 💨 6 mph H 73%30.06 inHg

10:00 AM

Overcast

70° 💧 None 💨 8 mph H 49%30.09 inHg

1:00 PM

Mostly cloudy

77° 💧 None 💨 6 mph H 36%30.03 inHg

4:00 PM

Partly cloudy

78° 💧 None 💨 7 mph H 37%29.97 inHg

7:00 PM

Clear night

71° 💧 None 💨 5 mph H 53%29.97 inHg

10:00 PM

Partly cloudy night

67° 💧 None 💨 6 mph H 69%30.00 inHg

Monday

1:00 AM

Mostly clear night

63° 💧 None 💨 7 mph H 67%29.97 inHg

7:00 AM

Overcast

62° 💧 None 💨 5 mph H 68%30.00 inHg

1:00 PM

Sunny

58° 💧 None 💨 5 mph H 79%30.00 inHg

7:00 PM

Clear night

77° 💧 None 💨 4 mph H 34%29.97 inHg

Tuesday

1:00 AM

Clear night

70° 💧 None 💨 4 mph H 48%29.91 inHg

7:00 AM

Sunny

60° 💧 None 💨 6 mph H 62%29.94 inHg

1:00 PM

Sunny

55° 💧 None 💨 7 mph H 80%29.94 inHg

7:00 PM

Clear night

79° 💧 None 💨 5 mph H 29%29.94 inHg

Wednesday

1:00 AM

Partly cloudy night

71° 💧 None 💨 6 mph H 42%29.91 inHg

7:00 AM

Partly cloudy

63° 💧 None 💨 7 mph H 58%29.94 inHg

1:00 PM

Partly cloudy

58° 💧 None 💨 7 mph H 67%29.97 inHg

7:00 PM

Mostly clear night

84° 💧 None 💨 11 mph H 29%29.97 inHg

Thursday

1:00 AM

Overcast night

76° 💧 None 💨 9 mph H 38%29.94 inHg

7:00 AM

Overcast

68° 💧 None 💨 9 mph H 56%30.00 inHg

1:00 PM

Overcast

65° 💧 None 💨 8 mph H 65%30.03 inHg

7:00 PM

Overcast night

87° 💧 None 💨 9 mph H 28%30.03 inHg

Friday

1:00 AM

Overcast night

80° 💧 None 💨 8 mph H 33%30.00 inHg

7:00 AM

Overcast

74° 💧 None 💨 8 mph H 43%30.06 inHg

1:00 PM

Overcast

71° 💧 None 💨 7 mph H 52%30.09 inHg

7:00 PM

Overcast night

87° 💧 None 💨 9 mph H 31%30.09 inHg

Saturday

1:00 AM

Partly cloudy night

81° 💧 None 💨 6 mph H 42%30.03 inHg

7:00 AM

Partly cloudy

76° 💧 None 💨 9 mph H 49%30.03 inHg

1:00 PM

Overcast

73° 💧 None 💨 8 mph H 57%30.03 inHg

7:00 PM

Overcast night

79° 💧 None 💨 12 mph H 56%30.03 inHg

Sunday

1:00 AM

Light rain

71° 💧 None 💨 8 mph H 86%29.97 inHg

7:00 AM

Moderate rain

69° 💧 None 💨 8 mph H 97%29.94 inHg

1:00 PM

Light rain

69° 💧 None 💨 5 mph H 99%29.94 inHg

7:00 PM

Light rain

72° 💧 None 💨 4 mph H 97%29.94 inHg

Monday

1:00 AM

Overcast night

71° 💧 None 💨 7 mph H 97%29.94 inHg

7:00 AM

Overcast

67° 💧 None 💨 11 mph H 70%30.06 inHg

1:00 PM

Overcast

62° 💧 None 💨 9 mph H 75%30.12 inHg

7:00 PM

Mostly cloudy night

69° 💧 None 💨 9 mph H 54%30.12 inHg

Tuesday

1:00 AM

Partly cloudy night

65° 💧 None 💨 8 mph H 52%30.09 inHg

7:00 AM

Moderate rain

61° 💧 None 💨 7 mph H 60%30.09 inHg

1:00 PM

Overcast

55° 💧 None 💨 7 mph H 90%30.09 inHg

7:00 PM

Clear night

69° 💧 None 💨 9 mph H 47%30.06 inHg

Wednesday

1:00 AM

Clear night

63° 💧 None 💨 8 mph H 55%30.03 inHg

In Williamson and, more broadly, across the state of Illinois: This morning begins with mostly cloudy skies and mild temperatures ranging from 60 to 69 degrees Fahrenheit. Winds will be coming from the northeast at around 11 mph, with gusts reaching up to 21 mph. As the day progresses into the afternoon, the cloud cover is expected to persist, but no precipitation is anticipated. Temperatures are likely to remain steady within the mild range, providing comfortable conditions for outdoor activities. Winds will continue from the northeast, maintaining a moderate breeze throughout the day. Overall, it will be a relatively calm day with partly cloudy skies and no significant weather disruptions.

15-Day Weather Outlook for Williamson

TomorrowTomorrow

Mostly sunny 71°/58° 💧 None 💨 10 mph

Thursday, Sep 24Thu Sep 24

Overcast 74°/61° 💧 None 💨 7 mph

Friday, Sep 25Fri Sep 25

Partly cloudy 74°/61° 💧 0.010 in 💨 7 mph

Saturday, Sep 26Sat Sep 26

Overcast 70°/59° 💧 None 💨 8 mph

Sunday, Sep 27Sun Sep 27

Overcast 78°/59° 💧 None 💨 8 mph

Monday, Sep 28Mon Sep 28

Mostly sunny 77°/58° 💧 0.032 in 💨 7 mph

Tuesday, Sep 29Tue Sep 29

Sunny 79°/55° 💧 None 💨 7 mph

Wednesday, Sep 30Wed Sep 30

Partly cloudy 84°/58° 💧 None 💨 11 mph

Thursday, Oct 1Thu Oct 1

Overcast 87°/65° 💧 None 💨 9 mph

Friday, Oct 2Fri Oct 2

Overcast 87°/71° 💧 None 💨 9 mph

Saturday, Oct 3Sat Oct 3

Overcast 81°/73° 💧 0.002 in 💨 12 mph

Sunday, Oct 4Sun Oct 4

Moderate rain 72°/69° 💧 0.545 in 💨 8 mph

Monday, Oct 5Mon Oct 5

Overcast 71°/62° 💧 0.171 in 💨 11 mph

Tuesday, Oct 6Tue Oct 6

Moderate rain 69°/55° 💧 0.085 in 💨 9 mph

Wednesday, Oct 7Wed Oct 7

Sunny 63°/63° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Williamson

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Williamson

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 9:00 AM

PM2.5 Fine particles Good 4,2µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 5,0µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 44,7µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 5,1µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Williamson

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 3,5Moderate 😊Good

Tomorrow UV 5,6Moderate 🙂Fair

Thursday UV 6,6High 🙂Fair

Friday UV 5,3Moderate 🙂Fair

Saturday UV 5,0Moderate 🙂Fair

Sunday UV 7,0High —Unavailable

Monday UV 5,0Moderate —Unavailable

Hourly UV index today

9:00 AMUV 0,5 10:00 AMUV 1,4 11:00 AMUV 2,5 12:00 PMUV 3,3 1:00 PMUV 3,5 2:00 PMUV 2,9 3:00 PMUV 2,1 4:00 PMUV 1,4 5:00 PMUV 0,6 6:00 PMUV 0,1 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Williamson

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · WILLIAMSON, ILLINOIS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 1:00 AM–2:00 AM.

94/100Best-hour score

BEST TIME TONIGHT 1:00 AM–2:00 AM Astronomical darkness: 8:25 PM–5:18 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 88% Waxing Gibbous · Moon about 23° above the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 40° high at the best hour.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min37%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

ACTIVE NOW

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

Bellflower US · California · 76,819 residents Mount Hunter AU · New South Wales · 749 residents Seer Green GB · England · 2,580 residents Huntington US · Virginia · 13,502 residents Markham CA · Ontario · 338,503 residents Turners Falls US · Massachusetts · 4,124 residents De Soto US · Kansas · 6,414 residents Dranesville US · Virginia · 11,828 residents Opa-locka US · Florida · 16,282 residents Blackhawk US · California · 10,137 residents New Orleans US · Louisiana · 371,853 residents Belzoni US · Mississippi · 1,306 residents Laurium US · Michigan · 1,509 residents Allen US · Texas · 110,265 residents Woking GB · England · 75,660 residents Junction City US · Kansas · 22,331 residents

Forecast data for Williamson were last refreshed today at 8:44 AM. The current forecast period extends through 24/09/2026 at 6:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.