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.

Mostly Cloudy

81°F

27°C

Humidity 51%
Wind Speed W 9 mph
Barometer 30.02 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 20 Jun 12:55 pm CDT
Extended Forecast for

2 Miles ENE Brownstown IL

Flood Watch June 21, 07:00am until June 22, 01:00am
Click here for hazard details and duration
Flood Watch

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 82. Northwest wind 3 to 6 mph.

    High: 82 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 63. Calm wind becoming east around 5 mph after midnight.

    Low: 63 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 11am. Mostly cloudy, with a high near 81. Southeast wind 7 to 15 mph becoming south in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 60%.

    High: 81 °F

    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 4am, then isolated showers. Low around 65. South wind 11 to 14 mph becoming west after midnight. Chance of precipitation is 90%.

    Low: 65 °F

    T-storms then
    Scattered
    T-storms

  • Monday

    Monday: Isolated showers, with thunderstorms also possible after 7am. Partly sunny, with a high near 76. North wind around 10 mph. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 82. Northwest wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 63. Calm wind becoming east around 5 mph after midnight.
Sunday
Showers and thunderstorms likely, mainly after 11am. Mostly cloudy, with a high near 81. Southeast wind 7 to 15 mph becoming south in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 60%.
Sunday Night
Showers and thunderstorms before 4am, then isolated showers. Low around 65. South wind 11 to 14 mph becoming west after midnight. Chance of precipitation is 90%.
Monday
Isolated showers, with thunderstorms also possible after 7am. Partly sunny, with a high near 76. North wind around 10 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Brownstown IL
 39°N 88.93°W (Elev. 584 ft)
Last Update:
11:26 am CDT Jun 20, 2026
Forecast Valid:
1pm CDT Jun 20, 2026-6pm CDT Jun 26, 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