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

68°F

20°C

Humidity 89%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 20 Jun 9:35 pm CDT
Extended Forecast for

Saint Elmo IL

Flood Watch June 21, 07:00am until June 22, 01:00am
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: Partly cloudy, with a low around 62. Calm wind becoming east around 5 mph after midnight.

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 11am. Increasing clouds, with a high near 81. Southeast wind 7 to 15 mph becoming south in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%.

    High: 81 °F

    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 4am, then a slight chance of showers. Low around 65. Southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.

    Low: 65 °F

    T-storms then
    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 75. West wind 9 to 11 mph becoming north in the afternoon.

    High: 75 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58. North wind 3 to 8 mph.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 62. Calm wind becoming east around 5 mph after midnight.
Sunday
Showers and thunderstorms likely, mainly after 11am. Increasing clouds, with a high near 81. Southeast wind 7 to 15 mph becoming south in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms before 4am, then a slight chance of showers. Low around 65. Southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.
Monday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 75. West wind 9 to 11 mph becoming north in the afternoon.
Monday Night
Partly cloudy, with a low around 58. North wind 3 to 8 mph.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 60.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Elmo IL
 39.02°N 88.85°W (Elev. 600 ft)
Last Update:
9:31 pm CDT Jun 20, 2026
Forecast Valid:
9pm CDT Jun 20, 2026-6pm CDT Jun 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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