Mascoutah, Illinois Weather
your sport, your way
Air Sports Net on FacebookAir Sports Net on Google +Air Sports Net on TwitterReceive RSS UpdatesReceive Email Updates

No Watches or Warnings for Mascoutah
Change location by the zip code or city,state: or search for other weather forecast locations in Illinois by name.
Weather Forecast for Mascoutah, Illinois : St. Clair County
Issued: 4:16 am CDT Aug 2, 2025 Latitude: 38.490327 Longitude: -89.793154 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday Thursday Friday
Mostly Sunny on Today Cloudy on Tonight Sunny on Sunday 20% chance of thunderstorms on Monday 20% chance of thunderstorms on Tuesday Sunny on Wednesday Sunny on Thursday Sunny on Friday
High: 80°F Low: 59°F High: 80°F High: 82°F High: 84°F High: 86°F High: 88°F High: 90°F
Low: 64°F Low: 67°F Low: 68°F Low: 69°F Low: 72°F  
Mostly Sunny Cloudy Sunny Thunderstorms Thunderstorms Sunny Sunny Sunny
-
Current Conditions at
SCOTT AFB - (KBLV)
64°
Clear
as of 3:55 AM CDST
Rel. Humidity: 82%
Dew Point: 59°F
Visibility: 8 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
8 MPH
030° Northeast
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
61°
Clear
as of 3:53 AM CDST
Rel. Humidity: 87%
Dew Point: 57°F
Visibility: 7 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
6 MPH
010° North
Cloud Level(s): Clear
Current Conditions at
SPARTA - (KSAR)
63°
Clear
as of 4:15 AM CDST
Rel. Humidity: 88%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
5 MPH
050° Northeast
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
64°
Clear
as of 3:51 AM CDST
Rel. Humidity: 77%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.31 in.
Flight Rule: VFR
Wind Data
7 MPH
050° Northeast
Cloud Level(s): Clear
Mostly Sunny on Today Today... Mostly sunny, with a high near 80. Northeast wind 6 to 10 mph.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 59. Northeast wind 3 to 6 mph.
Sunny on Sunday Sunday... Sunny, with a high near 80. Northeast wind 3 to 7 mph.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 64. Northeast wind around 6 mph becoming calm in the evening.
20% chance of thunderstorms Monday Monday... A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. Calm wind becoming northeast around 5 mph in the afternoon.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 67.
20% chance of thunderstorms Tuesday Tuesday... A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 68.
Sunny on Wednesday Wednesday... Sunny, with a high near 86.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 69.
Sunny on Thursday Thursday... Sunny, with a high near 88.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 72.
Sunny on Friday Friday... Sunny, with a high near 90.
Current Radar Image


Sun Almanac for Mascoutah, Illinois
Sunrise: 06:03 AM
Sunset: 8:08 PM
Civil Sunrise:05:33 AM
Civil Sunset: 8:38 PM
Nautical Sunrise: 04:57 AM
Nautical Sunset: 9:13 PM
Astro Sunrise: 04:19 AM
Astro Sunset: 9:52 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.