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

Hazardous Weather Conditions

Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fair

56°F

13°C

Humidity 73%
Wind Speed E 3 mph
Barometer 30.04 in
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 14 May 9:35 pm CDT
Extended Forecast for

Brownstown IL

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 51. Southeast wind 5 to 9 mph.

    Low: 51 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers and thunderstorms likely before 11am, then a slight chance of showers between 11am and 4pm. Cloudy through mid morning, then gradual clearing, with a high near 75. South wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 64. South wind 8 to 13 mph, with gusts as high as 21 mph.

    Low: 64 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 81. Southwest wind 11 to 15 mph. Chance of precipitation is 60%.

    High: 81 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 7 to 9 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 68.

    Low: 68 °F

    Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Breezy.

    High: 87 °F

    Breezy. Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 51. Southeast wind 5 to 9 mph.
Friday
Showers and thunderstorms likely before 11am, then a slight chance of showers between 11am and 4pm. Cloudy through mid morning, then gradual clearing, with a high near 75. South wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 64. South wind 8 to 13 mph, with gusts as high as 21 mph.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 81. Southwest wind 11 to 15 mph. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 7 to 9 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 86.
Sunday Night
Clear, with a low around 68.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Breezy.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 85. Breezy. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 58.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Brownstown IL
 39°N 88.96°W (Elev. 558 ft)
Last Update:
9:11 pm CDT May 14, 2026
Forecast Valid:
9pm CDT May 14, 2026-6pm CDT May 21, 2026
 
Forecast Discussion
 
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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