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

68°F

20°C

Humidity 89%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 20 Jun 9:35 pm CDT
Extended Forecast for

Effingham IL

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

  • Tonight

    Tonight: Mostly cloudy, with a low around 63. Light east wind.

    Low: 63 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after noon. Mostly cloudy, with a high near 81. East wind 5 to 14 mph becoming south in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 4am, then a chance of showers. Low around 65. South wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 65 °F

    T-storms then
    Chance
    T-storms

  • Monday

    Monday: Mostly cloudy, with a high near 75. West wind 8 to 10 mph becoming north in the afternoon. Winds could gust as high as 17 mph.

    High: 75 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58. North northeast wind 3 to 8 mph.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 78. Light northeast wind.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 63. Light east wind.
Sunday
Showers and thunderstorms likely, mainly after noon. Mostly cloudy, with a high near 81. East wind 5 to 14 mph becoming south in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and thunderstorms before 4am, then a chance of showers. Low around 65. South wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Mostly cloudy, with a high near 75. West wind 8 to 10 mph becoming north in the afternoon. Winds could gust as high as 17 mph.
Monday Night
Partly cloudy, with a low around 58. North northeast wind 3 to 8 mph.
Tuesday
Sunny, with a high near 78. Light northeast wind.
Tuesday Night
Mostly clear, with a low around 59. Calm wind.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 81.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Effingham IL
 39.12°N 88.55°W (Elev. 581 ft)
Last Update:
8:11 pm CDT Jun 20, 2026
Forecast Valid:
10pm CDT Jun 20, 2026-6pm CDT Jun 27, 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