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

61°F

16°C

Humidity 34%
Wind Speed W 10 mph
Barometer 30.18 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 19 Apr 5:15 pm CDT
Extended Forecast for

Effingham IL

Frost Advisory April 20, 01:00am until April 20, 08:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Patchy frost after 3am. Otherwise, partly cloudy, with a low around 36. Northwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 60. East northeast wind around 5 mph becoming calm in the morning.

    High: 60 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. South southeast wind 5 to 8 mph, with gusts as high as 17 mph.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 75. Southwest wind 8 to 15 mph, with gusts as high as 24 mph.

    High: 75 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75. West southwest wind 6 to 8 mph, with gusts as high as 15 mph.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. South wind 5 to 7 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.

    Low: 61 °F

    Mostly Cloudy
    then Showers
    Likely

Detailed Forecast

Tonight
Patchy frost after 3am. Otherwise, partly cloudy, with a low around 36. Northwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 60. East northeast wind around 5 mph becoming calm in the morning.
Monday Night
Mostly clear, with a low around 46. South southeast wind 5 to 8 mph, with gusts as high as 17 mph.
Tuesday
Sunny, with a high near 75. Southwest wind 8 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 56. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 75. West southwest wind 6 to 8 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 57. South wind 5 to 7 mph.
Thursday
Sunny, with a high near 78.
Thursday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
A chance of showers. Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 68.
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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:
4:36 pm CDT Apr 19, 2026
Forecast Valid:
5pm CDT Apr 19, 2026-6pm CDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation