Summit, Illinois Weather
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Weather Forecast for Summit, Illinois : St. Clair County
Issued: 2:06 am CST Feb 5, 2025 Latitude: 38.5511613 Longitude: -90.0048273 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
20% chance of freezing rain on Overnight 80% chance of rain on Wednesday 10% chance of  on Thursday 20% chance of rain on Friday 70% chance of rain on Saturday Partly Sunny on Sunday Mostly Cloudy on Monday 40% chance of snow on Tuesday
Low: 33°F High: 40°F High: 34°F High: 44°F High: 61°F High: 39°F High: 41°F High: 37°F
Low: 49 °F Low: 31°F Low: 37°F Low: 29°F Low: 27°F Low: 28°F  
Freezing Rain Rain Partly Sunny Rain Rain Partly Sunny Mostly Cloudy Snow
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Current Conditions at
SCOTT AFB - (KBLV)
34°
Feels like 25°F
Cloudy
as of 2:55 AM CST
Rel. Humidity: 74%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: VFR
Wind Data
10 MPH
030° Northeast
Cloud Level(s): Solid Overcast at 3100ft
Current Conditions at
ST LOUIS - (KSTL)
34°
Feels like 25°F
Cloudy
as of 2:51 AM CST
Rel. Humidity: 69%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
12 MPH
050° Northeast
Cloud Level(s): Scattered at 3200ft, Solid Overcast at 4700ft
Current Conditions at
SPARTA - (KSAR)
37°
Feels like 30°F
Cloudy
as of 3:35 AM CST
Rel. Humidity: 74%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: VFR
Wind Data
9 MPH
030° Northeast
Cloud Level(s): Solid Overcast at 3600ft
20% chance of freezing rain Overnight Overnight... A slight chance of drizzle or freezing rain after 5am. Cloudy, with a low around 33. Northeast wind around 9 mph. Chance of precipitation is 20%.

80% chance of rain Wednesday Wednesday... Rain, mainly after 11am. Patchy fog after 3pm. High near 40. East wind 6 to 8 mph. Chance of precipitation is 80%.

80% chance of thunderstorms Wednesday Night Wednesday Night... Rain and possibly a thunderstorm before 10pm, then a chance of rain between 10pm and midnight, then a slight chance of drizzle after midnight. Patchy fog before 2am. Temperature rising to around 49 by 2am. Southeast wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 80%.

10% chance of  Thursday Thursday... A slight chance of drizzle before 8am. Partly sunny, with a steady temperature around 48. Northwest wind 6 to 10 mph.

Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 31. Northwest wind 3 to 6 mph.

20% chance of rain Friday Friday... A 20 percent chance of rain after noon. Partly sunny, with a high near 44.

70% chance of rain Friday Night Friday Night... Rain likely, mainly after midnight. Cloudy, with a low around 37. Chance of precipitation is 70%.

70% chance of rain Saturday Saturday... Rain likely, mainly before noon. Mostly cloudy, with a high near 61. Chance of precipitation is 70%.

20% chance of rain Saturday Night Saturday Night... A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 29.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 39.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 27.

Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 41.

50% chance of snow Monday Night Monday Night... A 50 percent chance of snow. Mostly cloudy, with a low around 28.

40% chance of snow Tuesday Tuesday... A 40 percent chance of snow. Mostly cloudy, with a high near 37.

Current Radar Image


Sun Almanac for Summit, Illinois
Sunrise: 07:01 AM
Sunset: 5:27 PM
Civil Sunrise:06:34 AM
Civil Sunset: 5:55 PM
Nautical Sunrise: 06:02 AM
Nautical Sunset: 6:26 PM
Astro Sunrise: 05:31 AM
Astro Sunset: 6:57 PM
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