Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

Galesburg Municipal Airport (KGBG)

Lat: 40.93°NLon: 90.43°WElev: 751ft.

Fog

N/A

Humidity NA
Wind Speed E 8 mph
Barometer 29.76 in
Dewpoint N/A
Visibility 0.50 mi
Last update 26 Dec 12:15 am CST
Extended Forecast for

Gerlaw IL

Dense Fog Advisory December 26, 12:31am until December 26, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory December 26, 12:31am until December 26, 09:00am

    NOW until 9:00am Fri

    Dense Fog Advisory

  • Overnight

    Low: 52 °F

    Areas Drizzle
    and Patchy
    Dense Fog

  • Friday

    Friday: Areas of dense fog before 11am.  Otherwise, mostly cloudy, with a high near 53. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 53 °F

    Areas Dense
    Fog then
    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. Calm wind becoming southeast around 5 mph after midnight.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 57. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 57 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after midnight.  Cloudy, with a low around 48.

    Low: 48 °F

    Cloudy then
    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly after noon.  Cloudy, with a high near 55. Chance of precipitation is 70%. New precipitation amounts between three quarters and one inch possible.

    High: 55 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A chance of rain and snow before midnight.  Mostly cloudy, with a low around 14. Blustery.  Chance of precipitation is 30%.

    Low: 14 °F

    Blustery.
    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 22. Blustery.

    High: 22 °F

    Mostly Sunny
    and Blustery

Detailed Forecast

Overnight
Areas of drizzle before 5am. Patchy dense fog. Otherwise, cloudy, with a steady temperature around 52. Southeast wind 5 to 10 mph becoming southwest.
Friday
Areas of dense fog before 11am. Otherwise, mostly cloudy, with a high near 53. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 38. Calm wind becoming southeast around 5 mph after midnight.
Saturday
Mostly cloudy, with a high near 57. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A 30 percent chance of rain after midnight. Cloudy, with a low around 48.
Sunday
Rain likely, mainly after noon. Cloudy, with a high near 55. Chance of precipitation is 70%. New precipitation amounts between three quarters and one inch possible.
Sunday Night
A chance of rain and snow before midnight. Mostly cloudy, with a low around 14. Blustery. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 22. Blustery.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
Partly sunny, with a high near 32.
Wednesday Night
Partly cloudy, with a low around 16.
New Year's Day
Mostly sunny, with a high near 28.
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ABOUT THIS FORECAST

 
Point Forecast:
Gerlaw IL
 40.99°N 90.62°W (Elev. 719 ft)
11:36 pm CST Dec 25, 2025
12am CST Dec 26, 2025-6pm CST Jan 1, 2026
 
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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