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

93°F

34°C

Humidity 56%
Wind Speed S 5 mph
Barometer 30.10 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 16 Aug 1:15 pm CDT
Extended Forecast for

2 Miles SSE Mason IL

Heat Advisory until August 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 17, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 73. South southeast wind 3 to 6 mph.

    Low: 73 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 101. Calm wind.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 93. Calm wind.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 95. Calm wind becoming west around 5 mph in the afternoon.

    High: 95 °F

    Hot

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 94. Heat index values as high as 102. South southwest wind around 6 mph.
Tonight
Mostly clear, with a low around 73. South southeast wind 3 to 6 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 101. Calm wind.
Sunday Night
Mostly clear, with a low around 74. Calm wind.
Monday
Sunny, with a high near 93. Calm wind.
Monday Night
Mostly clear, with a low around 73. Calm wind.
Tuesday
Sunny and hot, with a high near 95. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71.
Wednesday
Partly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Mason IL
 38.92°N 88.62°W (Elev. 518 ft)
Last Update:
1:25 pm CDT Aug 16, 2025
Forecast Valid:
1pm CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
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