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

66°F

19°C

Humidity 100%
Wind Speed SE 7 mph
Barometer 29.96 in
Dewpoint 66°F (19°C)
Visibility 7.00 mi
Last update 17 May 3:55 am CDT
Extended Forecast for

Effingham IL

  • Today

    Today: Sunny, with a high near 84. South wind 7 to 15 mph, with gusts as high as 25 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 67. South wind around 11 mph, with gusts as high as 24 mph.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Partly sunny, with a high near 82. South wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    Chance
    Showers then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 69. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    T-storms
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 84. South wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    T-storms then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 59. West southwest wind 6 to 9 mph becoming north northwest after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 59 °F

    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 69. North wind 8 to 10 mph, with gusts as high as 16 mph.

    High: 69 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 84. South wind 7 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 67. South wind around 11 mph, with gusts as high as 24 mph.
Monday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Partly sunny, with a high near 82. South wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 69. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 84. South wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm. Low around 59. West southwest wind 6 to 9 mph becoming north northwest after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Partly sunny, with a high near 69. North wind 8 to 10 mph, with gusts as high as 16 mph.
Wednesday Night
Mostly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Mostly cloudy, with a low around 53.
Friday
A chance of showers. Mostly cloudy, with a high near 73.
Friday Night
A chance of showers. Mostly cloudy, with a low around 58.
Saturday
Mostly cloudy, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Effingham IL
 39.12°N 88.53°W (Elev. 554 ft)
Last Update:
1:26 am CDT May 17, 2026
Forecast Valid:
4am CDT May 17, 2026-6pm CDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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