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

81°F

27°C

Humidity 83%
Wind Speed SE 6 mph
Barometer 29.96 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 10 Jul 12:15 pm CDT
Extended Forecast for

Saint Elmo IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 3pm. Sunny early, then becoming partly sunny, with a high near 88. Calm wind.

    High: 88 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Low around 69. Calm wind. Chance of precipitation is 80%.

    Low: 69 °F

    Showers

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before 11am. Partly sunny, with a high near 83. Light and variable wind. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 2am, then a chance of showers after 5am. Mostly cloudy, with a low around 67. Light east wind. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 84. Northeast wind 5 to 8 mph.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 3pm. Sunny early, then becoming partly sunny, with a high near 88. Calm wind.
Tonight
Showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Low around 69. Calm wind. Chance of precipitation is 80%.
Saturday
Showers and thunderstorms likely, mainly before 11am. Partly sunny, with a high near 83. Light and variable wind. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely before 2am, then a chance of showers after 5am. Mostly cloudy, with a low around 67. Light east wind. Chance of precipitation is 60%.
Sunday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 84. Northeast wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 65.
Monday
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 70.
Thursday
Sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Elmo IL
 39.02°N 88.85°W (Elev. 600 ft)
Last Update:
11:41 am CDT Jul 10, 2026
Forecast Valid:
12pm CDT Jul 10, 2026-6pm CDT Jul 16, 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