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

41°F

5°C

Humidity 87%
Wind Speed Calm
Barometer 30.20 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 18 Apr 10:55 pm CDT
Extended Forecast for

3 Miles NNW Mason IL

Frost Advisory April 19, 01:00am until April 19, 08:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Clear, with a low around 36. West southwest wind around 6 mph.

    Low: 36 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 63. West wind 6 to 16 mph, with gusts as high as 28 mph.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. North wind 5 to 11 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 61. Light and variable wind becoming east around 5 mph.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. Southeast wind 5 to 8 mph, with gusts as high as 16 mph.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75. Southwest wind 8 to 15 mph, with gusts as high as 23 mph.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56. South southwest wind 8 to 10 mph, with gusts as high as 17 mph.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 36. West southwest wind around 6 mph.
Sunday
Sunny, with a high near 63. West wind 6 to 16 mph, with gusts as high as 28 mph.
Sunday Night
Mostly clear, with a low around 35. North wind 5 to 11 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 61. Light and variable wind becoming east around 5 mph.
Monday Night
Mostly clear, with a low around 46. Southeast wind 5 to 8 mph, with gusts as high as 16 mph.
Tuesday
Mostly sunny, with a high near 75. Southwest wind 8 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around 56. South southwest wind 8 to 10 mph, with gusts as high as 17 mph.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 62.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 74.
Friday Night
Showers likely. Mostly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Mason IL
 38.99°N 88.65°W (Elev. 499 ft)
Last Update:
10:36 pm CDT Apr 18, 2026
Forecast Valid:
11pm CDT Apr 18, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation