What is the weather in Mason City right now?

Current weather in Mason City is overcast clouds.

Where can I find the hourly weather forecast for Mason City?

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

Is the weather forecast for Mason City updated regularly?

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

Now · 7:03 AM

Mason City Weather & Hourly Forecast

United States · Illinois · 62664

59°F

Overcast

Feels like: 56°F

💧 Humidity 85% 🌡 Pressure 30.30 inHg 💨 Wind 7 mph 👁 Visibility 8.7 mi ☁ Clouds 100% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:46 AM 🌇 Sunset 6:55 PM

Hourly Forecast for Mason City

Today

8:00 AM

Overcast

60° 💧 0.005 in 💨 7 mph H 84%30.30 inHg

11:00 AM

Mostly cloudy

65° 💧 None 💨 9 mph H 70%30.33 inHg

2:00 PM

Mostly cloudy

70° 💧 0.000 in 💨 11 mph H 57%30.27 inHg

5:00 PM

Overcast

68° 💧 None 💨 11 mph H 61%30.27 inHg

8:00 PM

Overcast night

65° 💧 None 💨 10 mph H 70%30.27 inHg

11:00 PM

Overcast night

63° 💧 None 💨 8 mph H 78%30.30 inHg

Tomorrow

2:00 AM

Overcast night

62° 💧 None 💨 6 mph H 82%30.27 inHg

5:00 AM

Clear night

57° 💧 None 💨 6 mph H 93%30.27 inHg

8:00 AM

Mostly sunny

57° 💧 None 💨 6 mph H 82%30.30 inHg

11:00 AM

Sunny

67° 💧 None 💨 6 mph H 66%30.30 inHg

2:00 PM

Overcast

73° 💧 None 💨 5 mph H 58%30.24 inHg

5:00 PM

Mostly cloudy

73° 💧 None 💨 6 mph H 60%30.21 inHg

8:00 PM

Overcast night

68° 💧 None 💨 4 mph H 75%30.21 inHg

11:00 PM

Mostly clear night

65° 💧 None 💨 6 mph H 79%30.24 inHg

Friday

2:00 AM

Overcast night

63° 💧 None 💨 6 mph H 82%30.21 inHg

5:00 AM

Overcast night

62° 💧 0.001 in 💨 6 mph H 86%30.24 inHg

Today

8:00 AM

Overcast

60° 💧 0.001 in 💨 7 mph H 84%30.30 inHg

9:00 AM

Overcast

61° 💧 0.001 in 💨 8 mph H 81%30.33 inHg

10:00 AM

Overcast

62° 💧 0.003 in 💨 8 mph H 78%30.33 inHg

11:00 AM

Mostly cloudy

65° 💧 None 💨 9 mph H 70%30.33 inHg

12:00 PM

Mostly cloudy

68° 💧 None 💨 9 mph H 66%30.33 inHg

1:00 PM

Mostly cloudy

69° 💧 None 💨 11 mph H 60%30.30 inHg

2:00 PM

Mostly cloudy

70° 💧 0.000 in 💨 11 mph H 57%30.27 inHg

3:00 PM

Overcast

70° 💧 None 💨 12 mph H 59%30.27 inHg

4:00 PM

Overcast

69° 💧 None 💨 11 mph H 59%30.27 inHg

5:00 PM

Overcast

68° 💧 None 💨 11 mph H 61%30.27 inHg

6:00 PM

Overcast

68° 💧 None 💨 9 mph H 64%30.27 inHg

7:00 PM

Overcast night

66° 💧 None 💨 9 mph H 66%30.27 inHg

8:00 PM

Overcast night

65° 💧 None 💨 10 mph H 70%30.27 inHg

9:00 PM

Overcast night

64° 💧 None 💨 9 mph H 74%30.30 inHg

10:00 PM

Overcast night

63° 💧 None 💨 9 mph H 76%30.30 inHg

11:00 PM

Overcast night

63° 💧 None 💨 8 mph H 78%30.30 inHg

Tomorrow

12:00 AM

Overcast night

63° 💧 None 💨 8 mph H 80%30.27 inHg

1:00 AM

Overcast night

62° 💧 None 💨 6 mph H 81%30.27 inHg

2:00 AM

Overcast night

62° 💧 None 💨 6 mph H 82%30.27 inHg

3:00 AM

Partly cloudy night

61° 💧 None 💨 6 mph H 86%30.27 inHg

4:00 AM

Clear night

58° 💧 None 💨 6 mph H 92%30.27 inHg

5:00 AM

Clear night

57° 💧 None 💨 6 mph H 93%30.27 inHg

6:00 AM

Clear night

56° 💧 None 💨 6 mph H 90%30.30 inHg

7:00 AM

Mostly sunny

55° 💧 None 💨 5 mph H 89%30.30 inHg

8:00 AM

Mostly sunny

57° 💧 None 💨 6 mph H 82%30.30 inHg

9:00 AM

Sunny

60° 💧 None 💨 6 mph H 74%30.30 inHg

10:00 AM

Sunny

64° 💧 None 💨 6 mph H 69%30.30 inHg

11:00 AM

Sunny

67° 💧 None 💨 6 mph H 66%30.30 inHg

12:00 PM

Sunny

69° 💧 None 💨 5 mph H 64%30.30 inHg

1:00 PM

Partly cloudy

72° 💧 None 💨 5 mph H 60%30.27 inHg

2:00 PM

Overcast

73° 💧 None 💨 5 mph H 58%30.24 inHg

3:00 PM

Overcast

73° 💧 None 💨 5 mph H 59%30.24 inHg

4:00 PM

Overcast

73° 💧 None 💨 5 mph H 60%30.21 inHg

5:00 PM

Mostly cloudy

73° 💧 None 💨 6 mph H 60%30.21 inHg

6:00 PM

Overcast

71° 💧 None 💨 5 mph H 64%30.21 inHg

7:00 PM

Mostly cloudy night

69° 💧 None 💨 4 mph H 70%30.21 inHg

8:00 PM

Overcast night

68° 💧 None 💨 4 mph H 75%30.21 inHg

9:00 PM

Mostly cloudy night

67° 💧 None 💨 5 mph H 75%30.21 inHg

10:00 PM

Partly cloudy night

66° 💧 None 💨 5 mph H 77%30.24 inHg

11:00 PM

Mostly clear night

65° 💧 None 💨 6 mph H 79%30.24 inHg

Friday

12:00 AM

Mostly cloudy night

63° 💧 None 💨 6 mph H 81%30.21 inHg

1:00 AM

Overcast night

63° 💧 None 💨 6 mph H 81%30.21 inHg

2:00 AM

Overcast night

63° 💧 None 💨 6 mph H 82%30.21 inHg

3:00 AM

Mostly cloudy night

63° 💧 None 💨 6 mph H 84%30.21 inHg

4:00 AM

Overcast night

63° 💧 None 💨 5 mph H 86%30.24 inHg

5:00 AM

Overcast night

62° 💧 None 💨 6 mph H 86%30.24 inHg

6:00 AM

Overcast night

62° 💧 None 💨 6 mph H 85%30.24 inHg

7:00 AM

Overcast

62° 💧 0.001 in 💨 6 mph H 85%30.24 inHg

8:00 AM

Overcast

62° 💧 None 💨 6 mph H 84%30.27 inHg

9:00 AM

Overcast

62° 💧 0.003 in 💨 6 mph H 83%30.27 inHg

10:00 AM

Light rain

62° 💧 0.019 in 💨 6 mph H 89%30.27 inHg

11:00 AM

Light rain

62° 💧 0.021 in 💨 6 mph H 91%30.30 inHg

12:00 PM

Light rain

62° 💧 0.005 in 💨 5 mph H 89%30.27 inHg

1:00 PM

Overcast

64° 💧 0.001 in 💨 4 mph H 83%30.27 inHg

2:00 PM

Overcast

67° 💧 None 💨 5 mph H 73%30.24 inHg

3:00 PM

Overcast

68° 💧 None 💨 6 mph H 69%30.21 inHg

4:00 PM

Overcast

68° 💧 None 💨 6 mph H 67%30.21 inHg

5:00 PM

Overcast

67° 💧 None 💨 7 mph H 66%30.21 inHg

6:00 PM

Overcast

66° 💧 None 💨 7 mph H 67%30.21 inHg

7:00 PM

Partly cloudy night

63° 💧 None 💨 6 mph H 71%30.18 inHg

10:00 PM

Overcast night

58° 💧 None 💨 6 mph H 77%30.21 inHg

Saturday

1:00 AM

Mostly cloudy night

55° 💧 None 💨 6 mph H 79%30.21 inHg

4:00 AM

Overcast night

54° 💧 None 💨 6 mph H 80%30.18 inHg

7:00 AM

Overcast

52° 💧 None 💨 6 mph H 86%30.21 inHg

10:00 AM

Mostly cloudy

61° 💧 None 💨 6 mph H 69%30.21 inHg

1:00 PM

Overcast

69° 💧 None 💨 6 mph H 55%30.18 inHg

4:00 PM

Overcast

70° 💧 None 💨 6 mph H 52%30.09 inHg

7:00 PM

Overcast night

66° 💧 None 💨 2 mph H 69%30.09 inHg

10:00 PM

Overcast night

63° 💧 None 💨 3 mph H 77%30.12 inHg

Sunday

1:00 AM

Overcast night

62° 💧 None 💨 6 mph H 79%30.09 inHg

4:00 AM

Overcast night

61° 💧 None 💨 6 mph H 74%30.09 inHg

7:00 AM

Overcast

59° 💧 None 💨 4 mph H 80%30.09 inHg

10:00 AM

Partly cloudy

67° 💧 None 💨 6 mph H 63%30.09 inHg

1:00 PM

Partly cloudy

71° 💧 None 💨 5 mph H 48%30.06 inHg

4:00 PM

Mostly sunny

73° 💧 None 💨 5 mph H 43%30.03 inHg

7:00 PM

Clear night

67° 💧 None 💨 4 mph H 64%30.00 inHg

10:00 PM

Clear night

63° 💧 None 💨 6 mph H 72%30.03 inHg

Monday

1:00 AM

Mostly clear night

60° 💧 None 💨 4 mph H 80%30.03 inHg

4:00 AM

Clear night

58° 💧 None 💨 4 mph H 86%30.00 inHg

7:00 AM

Sunny

56° 💧 None 💨 4 mph H 88%30.03 inHg

10:00 AM

Sunny

67° 💧 None 💨 6 mph H 64%30.00 inHg

1:00 PM

Sunny

75° 💧 None 💨 6 mph H 46%29.97 inHg

4:00 PM

Mostly cloudy

76° 💧 None 💨 6 mph H 45%29.91 inHg

7:00 PM

Overcast night

69° 💧 None 💨 5 mph H 60%29.88 inHg

Tuesday

1:00 AM

Overcast night

63° 💧 None 💨 8 mph H 67%29.88 inHg

7:00 AM

Overcast

61° 💧 None 💨 10 mph H 78%29.83 inHg

1:00 PM

Overcast

75° 💧 None 💨 11 mph H 63%29.74 inHg

7:00 PM

Moderate rain

69° 💧 None 💨 8 mph H 95%29.68 inHg

Wednesday

1:00 AM

Heavy rain

69° 💧 None 💨 13 mph H 95%29.59 inHg

7:00 AM

Overcast

67° 💧 None 💨 8 mph H 97%29.56 inHg

1:00 PM

Overcast

69° 💧 None 💨 11 mph H 77%29.65 inHg

7:00 PM

Overcast night

66° 💧 None 💨 9 mph H 79%29.68 inHg

Thursday

1:00 AM

Overcast night

63° 💧 None 💨 10 mph H 88%29.71 inHg

7:00 AM

Overcast

59° 💧 None 💨 10 mph H 92%29.74 inHg

1:00 PM

Overcast

67° 💧 None 💨 13 mph H 54%29.80 inHg

7:00 PM

Clear night

61° 💧 None 💨 12 mph H 58%29.85 inHg

Friday

1:00 AM

Clear night

52° 💧 None 💨 7 mph H 77%29.97 inHg

7:00 AM

Sunny

48° 💧 None 💨 8 mph H 86%30.06 inHg

1:00 PM

Mostly sunny

62° 💧 None 💨 9 mph H 49%30.09 inHg

7:00 PM

Mostly cloudy night

58° 💧 None 💨 4 mph H 66%30.06 inHg

Saturday

1:00 AM

Mostly clear night

51° 💧 None 💨 4 mph H 91%30.12 inHg

7:00 AM

Mostly cloudy

51° 💧 None 💨 3 mph H 95%30.21 inHg

1:00 PM

Mostly cloudy

64° 💧 None 💨 4 mph H 45%30.21 inHg

7:00 PM

Clear night

58° 💧 None 💨 2 mph H 63%30.18 inHg

Sunday

1:00 AM

Mostly cloudy night

51° 💧 None 💨 5 mph H 82%30.21 inHg

7:00 AM

Sunny

50° 💧 None 💨 5 mph H 86%30.24 inHg

1:00 PM

Sunny

69° 💧 None 💨 9 mph H 51%30.21 inHg

7:00 PM

Mostly cloudy night

64° 💧 None 💨 7 mph H 66%30.12 inHg

Monday

1:00 AM

Overcast night

59° 💧 None 💨 12 mph H 74%30.12 inHg

7:00 AM

Light rain

58° 💧 None 💨 8 mph H 86%30.12 inHg

1:00 PM

Overcast

74° 💧 None 💨 10 mph H 59%30.09 inHg

7:00 PM

Clear night

69° 💧 None 💨 9 mph H 76%30.00 inHg

Tuesday

1:00 AM

Clear night

66° 💧 None 💨 11 mph H 77%30.00 inHg

7:00 AM

Sunny

63° 💧 None 💨 11 mph H 81%29.97 inHg

1:00 PM

Overcast

77° 💧 None 💨 12 mph H 64%29.97 inHg

7:00 PM

Clear night

64° 💧 None 💨 10 mph H 56%30.03 inHg

Wednesday

1:00 AM

Clear night

55° 💧 None 💨 10 mph H 63%30.12 inHg

7:00 AM

Sunny

49° 💧 None 💨 9 mph H 65%30.18 inHg

1:00 PM

Sunny

60° 💧 None 💨 13 mph H 38%30.15 inHg

7:00 PM

Clear night

54° 💧 None 💨 10 mph H 50%30.12 inHg

In Mason City 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 Mason City

TomorrowTomorrow

Overcast 73°/55° 💧 None 💨 8 mph

Friday, Sep 25Fri Sep 25

Light rain 68°/58° 💧 0.065 in 💨 7 mph

Saturday, Sep 26Sat Sep 26

Mostly cloudy 70°/52° 💧 None 💨 6 mph

Sunday, Sep 27Sun Sep 27

Overcast 73°/59° 💧 0.002 in 💨 6 mph

Monday, Sep 28Mon Sep 28

Mostly sunny 76°/56° 💧 None 💨 6 mph

Tuesday, Sep 29Tue Sep 29

Moderate rain 75°/61° 💧 0.453 in 💨 11 mph

Wednesday, Sep 30Wed Sep 30

Heavy rain 69°/66° 💧 1.328 in 💨 13 mph

Thursday, Oct 1Thu Oct 1

Overcast 67°/59° 💧 0.044 in 💨 13 mph

Friday, Oct 2Fri Oct 2

Mostly sunny 62°/48° 💧 None 💨 9 mph

Saturday, Oct 3Sat Oct 3

Mostly sunny 64°/51° 💧 None 💨 4 mph

Sunday, Oct 4Sun Oct 4

Mostly cloudy 69°/50° 💧 None 💨 9 mph

Monday, Oct 5Mon Oct 5

Light rain 74°/58° 💧 0.037 in 💨 12 mph

Tuesday, Oct 6Tue Oct 6

Overcast 77°/63° 💧 None 💨 12 mph

Wednesday, Oct 7Wed Oct 7

Sunny 60°/49° 💧 None 💨 13 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Mason City

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Mason City

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 8:00 AM

PM2.5 Fine particles Good 4,1µg/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 4,7µg/m³

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

O₃ Ozone Good 47,7µg/m³

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

NO₂ Nitrogen dioxide Good 5,5µg/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 Mason City

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 6,0High 😊Good

Tomorrow UV 6,2High 🙂Fair

Friday UV 5,4Moderate 🙂Fair

Saturday UV 0,5Low 😐Moderate

Sunday UV 5,0Moderate 🙂Fair

Monday UV 6,0High —Unavailable

Tuesday UV 5,0Moderate —Unavailable

Hourly UV index today

8:00 AMUV 0,1 9:00 AMUV 0,4 10:00 AMUV 1,0 11:00 AMUV 1,7 12:00 PMUV 5,4 1:00 PMUV 6,0 2:00 PMUV 4,7 3:00 PMUV 2,0 4:00 PMUV 0,8 5:00 PMUV 0,4 6:00 PMUV 0,1 7:00 PMUV 0,0

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

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

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 Mason City

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · MASON CITY, ILLINOIS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

91/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 8:25 PM–5:17 AM

☁ Cloud cover 7% Real hourly forecast for the best viewing hour.

☾ Moonlight 95% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 63° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min70%

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.

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Forecast data for Mason City were last refreshed today at 7:03 AM. The current forecast period extends through 25/09/2026 at 5:00 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.