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.

Fair

69°F

21°C

Humidity 94%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 14 Oct 9:15 pm CDT
Extended Forecast for

Brownstown IL

  • Tonight

    Tonight: Cloudy, with a low around 65. Light northeast wind.

    Low: 65 °F

    Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 82. Light and variable wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 70%.

    High: 82 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. Southwest wind 7 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    Low: 50 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 56. Northwest wind 16 to 18 mph, with gusts as high as 30 mph.

    High: 56 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. North wind 8 to 13 mph, with gusts as high as 21 mph.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
Cloudy, with a low around 65. Light northeast wind.
Thursday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 82. Light and variable wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. Southwest wind 7 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Friday
Mostly cloudy, with a high near 56. Northwest wind 16 to 18 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around 39. North wind 8 to 13 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 61.
Saturday Night
Clear, with a low around 36.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brownstown IL
 39°N 88.96°W (Elev. 558 ft)
Last Update:
8:25 pm CDT Oct 14, 2026
Forecast Valid:
9pm CDT Oct 14, 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