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

86°F

30°C

Humidity 89%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 82°F (28°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 15 Aug 6:55 pm CDT
Extended Forecast for

5 Miles S Oconee IL

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 73. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 73 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Partly sunny, with a high near 91. Heat index values as high as 102. West northwest wind 5 to 7 mph becoming southwest in the morning.

    High: 91 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 3am. Increasing clouds, with a low around 68. North northwest wind 3 to 6 mph. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 84. North northwest wind 5 to 7 mph.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. Light north wind.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Light and variable wind.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Calm wind becoming south around 5 mph after midnight.

    Low: 68 °F

    Partly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 40%.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

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

    Low: 62 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 73. Calm wind becoming south southwest around 5 mph after midnight.
Sunday
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Partly sunny, with a high near 91. Heat index values as high as 102. West northwest wind 5 to 7 mph becoming southwest in the morning.
Sunday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 3am. Increasing clouds, with a low around 68. North northwest wind 3 to 6 mph. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 84. North northwest wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 62. Light north wind.
Tuesday
Sunny, with a high near 86. Light and variable wind.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Calm wind becoming south around 5 mph after midnight.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Wednesday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 62.
Thursday
Partly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Oconee IL
 39.23°N 89.12°W (Elev. 650 ft)
Last Update:
6:36 pm CDT Aug 15, 2026
Forecast Valid:
7pm CDT Aug 15, 2026-6pm CDT Aug 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation