National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Logan County Airport (KAAA)

Lat: 40.16°NLon: 89.34°WElev: 591ft.

Fog/Mist

47°F

8°C

Humidity 93%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 45°F (7°C)
Visibility 1.00 mi
Last update 5 Mar 3:55 am CST
Extended Forecast for

Chestnut IL

Dense Fog Advisory March 5, 04:15am until March 5, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 5, 04:15am until March 5, 09:00am

    NOW until 9:00am Thu

    Dense Fog Advisory

  • Overnight

    Low: 47 °F

    Chance
    Showers and
    Dense Fog

  • Thursday

    Thursday: A 30 percent chance of showers before 11am. Widespread dense fog, mainly before 10am. Otherwise, cloudy, with a high near 60. West wind 5 to 8 mph.

    High: 60 °F

    Chance
    Showers and
    Dense Fog
    then Patchy
    Fog

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms after 3am. Widespread fog, mainly before 3am. Otherwise, cloudy, with a low around 50. Light and variable wind becoming southeast 5 to 9 mph in the evening. Winds could gust as high as 17 mph.

    Low: 50 °F

    Fog then
    Chance
    T-storms and
    Fog

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms before 9am. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 76. Breezy, with a south wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 76 °F

    Chance
    T-storms and
    Patchy Fog
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: A chance of showers, then showers and possibly a thunderstorm after midnight. Low around 58. Breezy, with a south wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Chance
    Showers then
    Showers and
    Breezy

  • Saturday

    Saturday: A 40 percent chance of showers before noon. Mostly cloudy, with a high near 64. Southwest wind 13 to 18 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph.

    High: 64 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. West northwest wind 6 to 11 mph, with gusts as high as 17 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly after 5am. Widespread dense fog. Otherwise, cloudy, with a low around 47. Light east northeast wind.
Thursday
A 30 percent chance of showers before 11am. Widespread dense fog, mainly before 10am. Otherwise, cloudy, with a high near 60. West wind 5 to 8 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms after 3am. Widespread fog, mainly before 3am. Otherwise, cloudy, with a low around 50. Light and variable wind becoming southeast 5 to 9 mph in the evening. Winds could gust as high as 17 mph.
Friday
A 50 percent chance of showers and thunderstorms before 9am. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 76. Breezy, with a south wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.
Friday Night
A chance of showers, then showers and possibly a thunderstorm after midnight. Low around 58. Breezy, with a south wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 40 percent chance of showers before noon. Mostly cloudy, with a high near 64. Southwest wind 13 to 18 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 36. West northwest wind 6 to 11 mph, with gusts as high as 17 mph.
Sunday
Sunny, with a high near 62.
Sunday Night
Clear, with a low around 44.
Monday
Sunny, with a high near 74.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Tuesday
Showers. Mostly cloudy, with a high near 72. Breezy.
Tuesday Night
Showers. Cloudy, with a low around 47. Breezy.
Wednesday
Showers likely. Mostly cloudy, with a high near 58. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chestnut IL
 40.05°N 89.19°W (Elev. 623 ft)
Last Update:
3:01 am CST Mar 5, 2026
Forecast Valid:
4am CST Mar 5, 2026-6pm CDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation