National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fog/Mist

66°F

19°C

Humidity 94%
Wind Speed E 6 mph
Barometer 30.06 in
Dewpoint 65°F (18°C)
Visibility 2.00 mi
Last update 15 Oct 6:55 am CDT
Extended Forecast for

Brownstown IL

  • Today

    Today: Showers and thunderstorms likely, mainly before 1pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 80. East wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 70%.

    High: 80 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before 1am, then scattered showers. Increasing clouds, with a low around 48. Southwest wind 10 to 16 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%.

    Low: 48 °F

    Showers
    Likely

  • Friday

    Friday: Cloudy through mid morning, then becoming mostly sunny, with a high near 57. Northwest wind 16 to 18 mph, with gusts as high as 26 mph.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 37. North wind 9 to 14 mph, with gusts as high as 22 mph.

    Low: 37 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 59. Northeast wind 3 to 7 mph.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 35.

    Low: 35 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 1pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 80. East wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 70%.
Tonight
Showers and thunderstorms likely before 1am, then scattered showers. Increasing clouds, with a low around 48. Southwest wind 10 to 16 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%.
Friday
Cloudy through mid morning, then becoming mostly sunny, with a high near 57. Northwest wind 16 to 18 mph, with gusts as high as 26 mph.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 37. North wind 9 to 14 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 59. Northeast wind 3 to 7 mph.
Saturday Night
Clear, with a low around 35.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 37.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brownstown IL
 38.98°N 88.96°W (Elev. 561 ft)
Last Update:
5:11 am CDT Oct 15, 2026
Forecast Valid:
7am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation