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.

Sky Obscured with Haze

80°F

27°C

Humidity 19%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 34°F (1°C)
Visibility 0.15 mi
Heat Index79°F (26°C)
Last update 28 Sep 3:35 pm CDT
Extended Forecast for

Brownstown IL

  • Tonight

    Tonight: Clear, with a low around 51. Calm wind.

    Low: 51 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. Light southeast wind.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87. Light south wind increasing to 5 to 9 mph in the morning.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 69. South wind 6 to 8 mph.

    Low: 69 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 86.

    High: 86 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.

    High: 71 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 51. Calm wind.
Tuesday
Sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 61. Light southeast wind.
Wednesday
Mostly sunny, with a high near 87. Light south wind increasing to 5 to 9 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 69. South wind 6 to 8 mph.
Thursday
A 50 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 86.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 57.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 70.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 55.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Brownstown IL
 39°N 88.96°W (Elev. 558 ft)
Last Update:
2:26 pm CDT Sep 28, 2026
Forecast Valid:
3pm CDT Sep 28, 2026-6pm CDT Oct 5, 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