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 with Haze

81°F

27°C

Humidity 27%
Wind Speed E 5 mph
Barometer 30.01 in
Dewpoint 44°F (7°C)
Visibility 5.00 mi
Heat Index80°F (27°C)
Last update 29 Sep 2:35 pm CDT
Extended Forecast for

Oconee IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 83. South wind around 7 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 62. South wind 3 to 6 mph.

    Low: 62 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 85. South wind 6 to 9 mph, with gusts as high as 15 mph.

    High: 85 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 69. South wind 5 to 7 mph.

    Low: 69 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers after 1pm. Increasing clouds, with a high near 86. Southwest wind 8 to 10 mph, with gusts as high as 17 mph.

    High: 86 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers, mainly after 1am. Low around 64. West southwest wind around 5 mph becoming light and variable. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 64 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 72. North northeast wind 7 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 72 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 83. South wind around 7 mph.
Tonight
Increasing clouds, with a low around 62. South wind 3 to 6 mph.
Wednesday
Mostly cloudy, with a high near 85. South wind 6 to 9 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly cloudy, with a low around 69. South wind 5 to 7 mph.
Thursday
A 30 percent chance of showers after 1pm. Increasing clouds, with a high near 86. Southwest wind 8 to 10 mph, with gusts as high as 17 mph.
Thursday Night
Showers, mainly after 1am. Low around 64. West southwest wind around 5 mph becoming light and variable. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 72. North northeast wind 7 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Oconee IL
 39.29°N 89.12°W (Elev. 686 ft)
Last Update:
2:52 pm CDT Sep 29, 2026
Forecast Valid:
2pm CDT Sep 29, 2026-6pm CDT Oct 5, 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