What is the weather in Byron right now?

Current weather in Byron is scattered clouds.

Where can I find the hourly weather forecast for Byron?

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

Is the weather forecast for Byron updated regularly?

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

Now · 12:33 AM

Byron Weather & Hourly Forecast

United States · Illinois · 61010

67°F

Partly cloudy night

Feels like: 70°F

💧 Humidity 95% 🌡 Pressure 30.06 inHg 💨 Wind 5 mph 👁 Visibility 11.0 mi ☁ Clouds 59% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Byron

Today

1:00 AM

Partly cloudy night

67° 💧 None 💨 5 mph H 95%30.06 inHg

4:00 AM

Mostly clear night

65° 💧 None 💨 5 mph H 95%30.06 inHg

7:00 AM

Mostly sunny

65° 💧 None 💨 5 mph H 97%30.06 inHg

10:00 AM

Mostly sunny

74° 💧 None 💨 6 mph H 77%30.06 inHg

1:00 PM

Mostly cloudy

80° 💧 None 💨 7 mph H 57%30.06 inHg

4:00 PM

Mostly cloudy

81° 💧 None 💨 8 mph H 53%30.03 inHg

7:00 PM

Mostly sunny

74° 💧 None 💨 8 mph H 67%30.03 inHg

10:00 PM

Mostly cloudy night

66° 💧 None 💨 8 mph H 72%30.09 inHg

Tomorrow

1:00 AM

Clear night

63° 💧 None 💨 5 mph H 90%30.12 inHg

4:00 AM

Clear night

62° 💧 None 💨 5 mph H 92%30.12 inHg

7:00 AM

Sunny

62° 💧 None 💨 5 mph H 90%30.18 inHg

10:00 AM

Sunny

72° 💧 None 💨 6 mph H 67%30.18 inHg

1:00 PM

Mostly cloudy

77° 💧 None 💨 8 mph H 53%30.15 inHg

4:00 PM

Partly cloudy

79° 💧 None 💨 8 mph H 52%30.12 inHg

7:00 PM

Mostly cloudy

73° 💧 None 💨 6 mph H 63%30.09 inHg

10:00 PM

Overcast night

67° 💧 None 💨 8 mph H 77%30.15 inHg

Today

1:00 AM

Partly cloudy night

67° 💧 None 💨 5 mph H 95%30.06 inHg

2:00 AM

Partly cloudy night

66° 💧 None 💨 5 mph H 95%30.06 inHg

3:00 AM

Mostly cloudy night

66° 💧 None 💨 5 mph H 95%30.03 inHg

4:00 AM

Mostly clear night

65° 💧 None 💨 5 mph H 95%30.06 inHg

5:00 AM

Clear night

65° 💧 None 💨 4 mph H 96%30.03 inHg

6:00 AM

Clear night

64° 💧 None 💨 4 mph H 96%30.03 inHg

7:00 AM

Mostly sunny

65° 💧 None 💨 5 mph H 97%30.06 inHg

8:00 AM

Mostly sunny

68° 💧 None 💨 5 mph H 92%30.09 inHg

9:00 AM

Mostly cloudy

71° 💧 None 💨 5 mph H 86%30.09 inHg

10:00 AM

Mostly sunny

74° 💧 None 💨 6 mph H 77%30.06 inHg

11:00 AM

Partly cloudy

77° 💧 None 💨 6 mph H 68%30.09 inHg

12:00 PM

Mostly cloudy

79° 💧 None 💨 7 mph H 61%30.06 inHg

1:00 PM

Mostly cloudy

80° 💧 None 💨 7 mph H 57%30.06 inHg

2:00 PM

Overcast

81° 💧 None 💨 7 mph H 55%30.06 inHg

3:00 PM

Mostly cloudy

82° 💧 None 💨 7 mph H 53%30.03 inHg

4:00 PM

Mostly cloudy

81° 💧 None 💨 8 mph H 53%30.03 inHg

5:00 PM

Mostly sunny

80° 💧 None 💨 9 mph H 55%30.03 inHg

6:00 PM

Mostly sunny

77° 💧 None 💨 9 mph H 60%30.03 inHg

7:00 PM

Mostly sunny

74° 💧 None 💨 8 mph H 67%30.03 inHg

8:00 PM

Mostly cloudy night

71° 💧 None 💨 9 mph H 70%30.06 inHg

9:00 PM

Overcast night

68° 💧 None 💨 8 mph H 70%30.06 inHg

10:00 PM

Mostly cloudy night

66° 💧 None 💨 8 mph H 72%30.09 inHg

11:00 PM

Overcast night

65° 💧 None 💨 7 mph H 79%30.12 inHg

Tomorrow

12:00 AM

Mostly cloudy night

64° 💧 None 💨 5 mph H 85%30.12 inHg

1:00 AM

Clear night

63° 💧 None 💨 5 mph H 90%30.12 inHg

2:00 AM

Clear night

63° 💧 None 💨 5 mph H 92%30.12 inHg

3:00 AM

Clear night

63° 💧 None 💨 5 mph H 92%30.12 inHg

4:00 AM

Clear night

62° 💧 None 💨 5 mph H 92%30.12 inHg

5:00 AM

Mostly clear night

62° 💧 None 💨 5 mph H 91%30.15 inHg

6:00 AM

Clear night

62° 💧 None 💨 5 mph H 91%30.15 inHg

7:00 AM

Sunny

62° 💧 None 💨 5 mph H 90%30.18 inHg

8:00 AM

Sunny

65° 💧 None 💨 5 mph H 84%30.18 inHg

9:00 AM

Sunny

69° 💧 None 💨 5 mph H 77%30.18 inHg

10:00 AM

Sunny

72° 💧 None 💨 6 mph H 67%30.18 inHg

11:00 AM

Mostly sunny

75° 💧 None 💨 7 mph H 57%30.18 inHg

12:00 PM

Mostly sunny

76° 💧 None 💨 7 mph H 54%30.18 inHg

1:00 PM

Mostly cloudy

77° 💧 None 💨 8 mph H 53%30.15 inHg

2:00 PM

Mostly cloudy

78° 💧 None 💨 8 mph H 52%30.12 inHg

3:00 PM

Partly cloudy

79° 💧 None 💨 8 mph H 52%30.12 inHg

4:00 PM

Partly cloudy

79° 💧 None 💨 8 mph H 52%30.12 inHg

5:00 PM

Partly cloudy

78° 💧 None 💨 8 mph H 53%30.09 inHg

6:00 PM

Mostly cloudy

77° 💧 None 💨 8 mph H 55%30.09 inHg

7:00 PM

Mostly cloudy

73° 💧 None 💨 6 mph H 63%30.09 inHg

8:00 PM

Mostly cloudy night

70° 💧 None 💨 7 mph H 67%30.12 inHg

9:00 PM

Mostly cloudy night

69° 💧 None 💨 9 mph H 71%30.12 inHg

10:00 PM

Overcast night

67° 💧 None 💨 8 mph H 77%30.15 inHg

11:00 PM

Overcast night

67° 💧 None 💨 7 mph H 82%30.15 inHg

Tuesday

12:00 AM

Mostly cloudy night

66° 💧 None 💨 8 mph H 84%30.15 inHg

1:00 AM

Overcast night

65° 💧 None 💨 8 mph H 85%30.12 inHg

2:00 AM

Mostly cloudy night

65° 💧 None 💨 7 mph H 84%30.12 inHg

3:00 AM

Partly cloudy night

65° 💧 None 💨 7 mph H 84%30.12 inHg

4:00 AM

Partly cloudy night

64° 💧 None 💨 7 mph H 85%30.12 inHg

5:00 AM

Mostly cloudy night

63° 💧 None 💨 8 mph H 86%30.12 inHg

6:00 AM

Partly cloudy night

63° 💧 None 💨 8 mph H 87%30.09 inHg

7:00 AM

Mostly cloudy

63° 💧 None 💨 8 mph H 87%30.12 inHg

4:00 PM

Sunny

85° 💧 None 💨 11 mph H 50%30.00 inHg

7:00 PM

Mostly sunny

80° 💧 None 💨 8 mph H 60%29.97 inHg

10:00 PM

Overcast night

78° 💧 None 💨 11 mph H 57%29.97 inHg

Wednesday

1:00 AM

Overcast night

78° 💧 None 💨 11 mph H 50%29.94 inHg

4:00 AM

Light rain

72° 💧 None 💨 11 mph H 71%29.94 inHg

7:00 AM

Light rain

70° 💧 None 💨 9 mph H 84%29.97 inHg

10:00 AM

Mostly cloudy

77° 💧 None 💨 7 mph H 79%30.00 inHg

1:00 PM

Partly cloudy

86° 💧 None 💨 9 mph H 62%29.94 inHg

4:00 PM

Mostly cloudy

86° 💧 None 💨 8 mph H 52%29.91 inHg

7:00 PM

Partly cloudy

79° 💧 None 💨 5 mph H 63%29.91 inHg

10:00 PM

Mostly clear night

74° 💧 None 💨 8 mph H 71%29.94 inHg

Thursday

1:00 AM

Mostly clear night

68° 💧 None 💨 7 mph H 74%29.94 inHg

4:00 AM

Mostly cloudy night

65° 💧 None 💨 6 mph H 82%29.97 inHg

7:00 AM

Partly cloudy

62° 💧 None 💨 5 mph H 89%29.97 inHg

10:00 AM

Sunny

72° 💧 None 💨 7 mph H 59%30.00 inHg

1:00 PM

Sunny

76° 💧 None 💨 9 mph H 46%29.97 inHg

4:00 PM

Sunny

76° 💧 None 💨 9 mph H 43%29.94 inHg

7:00 PM

Sunny

70° 💧 None 💨 4 mph H 56%29.94 inHg

10:00 PM

Clear night

64° 💧 None 💨 1 mph H 75%29.94 inHg

Friday

1:00 AM

Clear night

60° 💧 None 💨 3 mph H 85%29.97 inHg

4:00 AM

Clear night

58° 💧 None 💨 4 mph H 86%29.94 inHg

7:00 AM

Overcast

58° 💧 None 💨 5 mph H 82%29.94 inHg

10:00 AM

Mostly sunny

71° 💧 None 💨 8 mph H 63%29.94 inHg

1:00 PM

Overcast

78° 💧 None 💨 9 mph H 42%29.88 inHg

7:00 PM

Overcast

81° 💧 None 💨 9 mph H 40%29.91 inHg

Saturday

1:00 AM

Mostly clear night

76° 💧 None 💨 6 mph H 56%29.85 inHg

7:00 AM

Mostly sunny

69° 💧 None 💨 7 mph H 64%29.85 inHg

1:00 PM

Mostly sunny

66° 💧 None 💨 9 mph H 71%29.83 inHg

7:00 PM

Sunny

84° 💧 None 💨 13 mph H 53%29.74 inHg

Sunday

1:00 AM

Clear night

85° 💧 None 💨 13 mph H 60%29.65 inHg

7:00 AM

Light rain

74° 💧 None 💨 12 mph H 89%29.71 inHg

1:00 PM

Light rain

71° 💧 None 💨 8 mph H 95%29.74 inHg

7:00 PM

Light rain

67° 💧 None 💨 13 mph H 77%29.91 inHg

Monday

1:00 AM

Overcast night

66° 💧 None 💨 7 mph H 66%30.00 inHg

7:00 AM

Sunny

61° 💧 None 💨 8 mph H 67%30.12 inHg

1:00 PM

Sunny

54° 💧 None 💨 7 mph H 79%30.24 inHg

7:00 PM

Sunny

69° 💧 None 💨 7 mph H 46%30.24 inHg

Tuesday

1:00 AM

Clear night

63° 💧 None 💨 4 mph H 58%30.18 inHg

7:00 AM

Sunny

54° 💧 None 💨 4 mph H 82%30.24 inHg

1:00 PM

Sunny

51° 💧 None 💨 2 mph H 92%30.24 inHg

7:00 PM

Mostly sunny

71° 💧 None 💨 4 mph H 48%30.24 inHg

Wednesday

1:00 AM

Clear night

67° 💧 None 💨 1 mph H 59%30.18 inHg

7:00 AM

Sunny

57° 💧 None 💨 3 mph H 86%30.24 inHg

1:00 PM

Sunny

54° 💧 None 💨 3 mph H 88%30.30 inHg

7:00 PM

Sunny

76° 💧 None 💨 4 mph H 44%30.27 inHg

Thursday

1:00 AM

Clear night

71° 💧 None 💨 2 mph H 57%30.24 inHg

7:00 AM

Mostly sunny

61° 💧 None 💨 3 mph H 83%30.27 inHg

1:00 PM

Sunny

56° 💧 None 💨 1 mph H 89%30.27 inHg

7:00 PM

Partly cloudy

78° 💧 None 💨 3 mph H 45%30.27 inHg

Friday

1:00 AM

Mostly cloudy night

72° 💧 None 💨 2 mph H 61%30.21 inHg

7:00 AM

Overcast

66° 💧 None 💨 5 mph H 72%30.21 inHg

1:00 PM

Overcast

64° 💧 None 💨 3 mph H 78%30.18 inHg

7:00 PM

Overcast

75° 💧 None 💨 10 mph H 54%30.15 inHg

Saturday

1:00 AM

Mostly cloudy night

69° 💧 None 💨 8 mph H 59%30.03 inHg

7:00 AM

Overcast

62° 💧 None 💨 13 mph H 90%29.94 inHg

1:00 PM

Partly cloudy

63° 💧 None 💨 7 mph H 75%29.88 inHg

7:00 PM

Light rain

77° 💧 None 💨 7 mph H 62%29.85 inHg

Sunday

1:00 AM

Mostly clear night

72° 💧 None 💨 4 mph H 72%29.80 inHg

7:00 AM

Partly cloudy

64° 💧 None 💨 3 mph H 91%29.83 inHg

1:00 PM

Mostly cloudy

63° 💧 None 💨 7 mph H 94%29.83 inHg

In Byron and, more broadly, across the state of Illinois: This evening will feature a mix of sun and clouds with temperatures remaining quite warm, ranging from 83 to 88 degrees Fahrenheit. Winds will be moderate, coming from the northeast at speeds up to 12 mph, with occasional gusts reaching 25 mph. No rain is expected during the next few hours, so conditions will remain dry. It will be a warm and breezy evening, with the temperature gradually cooling as the night progresses. Overall, you can expect comfortable but warm weather conditions tonight, with no significant weather disturbances.

15-Day Weather Outlook for Byron

TomorrowTomorrow

Mostly sunny 79°/62° 💧 None 💨 9 mph

Tuesday, Sep 8Tue Sep 8

Mostly cloudy 85°/63° 💧 0.000 in 💨 11 mph

Wednesday, Sep 9Wed Sep 9

Light rain 86°/70° 💧 0.101 in 💨 11 mph

Thursday, Sep 10Thu Sep 10

Partly cloudy 79°/62° 💧 None 💨 9 mph

Friday, Sep 11Fri Sep 11

Overcast 78°/58° 💧 None 💨 9 mph

Saturday, Sep 12Sat Sep 12

Overcast 81°/66° 💧 None 💨 9 mph

Sunday, Sep 13Sun Sep 13

Light rain 85°/71° 💧 0.153 in 💨 13 mph

Monday, Sep 14Mon Sep 14

Light rain 67°/54° 💧 0.084 in 💨 13 mph

Tuesday, Sep 15Tue Sep 15

Sunny 69°/51° 💧 None 💨 7 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 71°/54° 💧 None 💨 4 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 76°/56° 💧 None 💨 4 mph

Friday, Sep 18Fri Sep 18

Partly cloudy 78°/64° 💧 None 💨 5 mph

Saturday, Sep 19Sat Sep 19

Overcast 75°/62° 💧 0.226 in 💨 13 mph

Sunday, Sep 20Sun Sep 20

Light rain 77°/63° 💧 0.069 in 💨 7 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Byron

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Byron

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 1:00 AM

PM2.5 Fine particles Fair 10,6µg/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 11,3µg/m³

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

O₃ Ozone Fair 78,4µg/m³

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

NO₂ Nitrogen dioxide Good 3,8µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Byron

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 7,3High 🙂Fair

Tomorrow UV 7,3High 😐Moderate

Tuesday UV 7,0High 😐Moderate

Wednesday UV 5,6Moderate 🙂Fair

Thursday UV 7,0High —Unavailable

Friday UV 8,0Very high —Unavailable

Saturday UV 7,0High —Unavailable

Hourly UV index today

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

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.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

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 Byron

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · BYRON, ILLINOIS

Tonight's Stargazing & Shooting Stars

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

84/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 9:02 PM–4:50 AM

☁ Cloud cover 10% Real hourly forecast for the best viewing hour.

☾ Moonlight 30% Waning Crescent · Moon about 41° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 87° 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 min69%

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

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

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

UPCOMING

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

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

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Forecast data for Byron were last refreshed today at 12:33 AM. The current forecast period extends through 07/09/2026 at 10:00 PM. 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.