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.

Fair

62°F

17°C

Humidity 33%
Wind Speed SE 7 mph
Barometer 30.27 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 20 Apr 4:35 pm CDT
Extended Forecast for

Effingham IL

  • Tonight

    Tonight: Mostly clear, with a low around 45. South wind 3 to 7 mph. Winds could gust as high as 15 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76. Southwest wind 7 to 15 mph, with gusts as high as 26 mph.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 55. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. West southwest wind around 8 mph, with gusts as high as 16 mph.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. South wind around 6 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. South wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after 1am. Partly cloudy, with a low around 61. South wind 11 to 13 mph, with gusts as high as 22 mph.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%.

    High: 74 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 45. South wind 3 to 7 mph. Winds could gust as high as 15 mph.
Tuesday
Mostly sunny, with a high near 76. Southwest wind 7 to 15 mph, with gusts as high as 26 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 55. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 76. West southwest wind around 8 mph, with gusts as high as 16 mph.
Wednesday Night
Mostly clear, with a low around 55. South wind around 6 mph.
Thursday
Sunny, with a high near 78. South wind 6 to 14 mph, with gusts as high as 23 mph.
Thursday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 61. South wind 11 to 13 mph, with gusts as high as 22 mph.
Friday
Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 72.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 51.
Sunday
Partly sunny, with a high near 70.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 53.
Monday
A chance of showers. Mostly cloudy, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Effingham IL
 39.12°N 88.55°W (Elev. 581 ft)
Last Update:
2:56 pm CDT Apr 20, 2026
Forecast Valid:
4pm CDT Apr 20, 2026-6pm CDT Apr 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