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.

Overcast

66°F

19°C

Humidity 72%
Wind Speed NE 5 mph
Barometer 30.11 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 21 May 4:55 pm CDT
Extended Forecast for

Effingham IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. East northeast wind around 8 mph, with gusts as high as 18 mph.

    Low: 55 °F

    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of showers, mainly after 11am. Cloudy, with a high near 68. East northeast wind around 9 mph, with gusts as high as 18 mph.

    High: 68 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers. Cloudy, with a low around 58. East northeast wind 5 to 7 mph becoming light and variable after midnight.

    Low: 58 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 76. West northwest wind around 6 mph.

    High: 76 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Light southeast wind. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Cloudy

  • Memorial Day

    Memorial Day: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 80.

    High: 80 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 55. East northeast wind around 8 mph, with gusts as high as 18 mph.
Friday
A 50 percent chance of showers, mainly after 11am. Cloudy, with a high near 68. East northeast wind around 9 mph, with gusts as high as 18 mph.
Friday Night
A 50 percent chance of showers. Cloudy, with a low around 58. East northeast wind 5 to 7 mph becoming light and variable after midnight.
Saturday
Mostly cloudy, with a high near 76. West northwest wind around 6 mph.
Saturday Night
Partly cloudy, with a low around 59. Calm wind.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Light southeast wind. Chance of precipitation is 50%.
Sunday Night
Mostly cloudy, with a low around 60. Calm wind.
Memorial Day
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 80.
Monday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 62.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 64.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 82.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 65.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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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:
2:21 pm CDT May 21, 2026
Forecast Valid:
5pm CDT May 21, 2026-6pm CDT May 28, 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