NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment

After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >

Hazardous Weather Conditions

Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Overcast

76°F

24°C

Humidity 77%
Wind Speed NE 7 mph
Barometer 29.96 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 26 May 6:35 pm CDT
Extended Forecast for

Brownstown IL

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 3am, then showers likely and possibly a thunderstorm after 4am.  Increasing clouds, with a low around 63. East wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 60%.

    Low: 63 °F

    Scattered
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly before 5pm.  Cloudy, then gradually becoming mostly sunny, with a high near 79. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 61. Northeast wind around 6 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Northeast wind 6 to 9 mph.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 60. East wind around 7 mph.

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 3am, then showers likely and possibly a thunderstorm after 4am. Increasing clouds, with a low around 63. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly before 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. Calm wind becoming north 5 to 7 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 61. Northeast wind around 6 mph.
Thursday
Mostly sunny, with a high near 82. Northeast wind 6 to 9 mph.
Thursday Night
Mostly cloudy, with a low around 60. East wind around 7 mph.
Friday
Partly sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Brownstown IL
 39°N 88.96°W (Elev. 558 ft)
4:51 pm CDT May 26, 2026
6pm CDT May 26, 2026-6pm CDT Jun 2, 2026
 
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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