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

40°F

4°C

Humidity 99%
Wind Speed SE 3 mph
Barometer 30.11 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 3 May 1:35 am CDT
Extended Forecast for

Jewett IL

  • Overnight

    Overnight: Clear, with a low around 38. Light south wind.

    Low: 38 °F

    Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 67. South southwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 67 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly between 8pm and 4am. Mostly cloudy, with a low around 52. South southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 52 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. Southwest wind 7 to 17 mph, with gusts as high as 26 mph.

    High: 76 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 57. South southwest wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 1pm. High near 63. South southwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 63 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely before 1am. Mostly cloudy, with a low around 44. North wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 38. Light south wind.
Sunday
Increasing clouds, with a high near 67. South southwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 29 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly between 8pm and 4am. Mostly cloudy, with a low around 52. South southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. Southwest wind 7 to 17 mph, with gusts as high as 26 mph.
Monday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 57. South southwest wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers, with thunderstorms also possible after 1pm. High near 63. South southwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Tuesday Night
Showers likely before 1am. Mostly cloudy, with a low around 44. North wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Partly sunny, with a high near 58.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 43.
Friday
Mostly sunny, with a high near 67.
Friday Night
A chance of showers. Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Jewett IL
 39.22°N 88.23°W (Elev. 551 ft)
Last Update:
1:25 am CDT May 3, 2026
Forecast Valid:
1am CDT May 3, 2026-6pm CDT May 9, 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