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

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

34°F

1°C

Humidity 76%
Wind Speed NW 17 G 31 mph
Barometer 29.63 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 16 Mar 12:35 am CDT
Extended Forecast for

Grantfork IL

Wind Advisory March 16, 12:42am until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 16, 12:42am until March 16, 12:00pm

    NOW until 12:00pm Mon

    Wind Advisory

  • Overnight

    Low: 21 °F

    Chance
    Rain/Snow and
    Blustery

  • Monday

    Monday: A chance of snow, mainly before 2pm, then a chance of flurries after 3pm. Cloudy, with a high near 27. Windy, with a northwest wind 26 to 30 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.

    High: 27 °F

    Chance Snow
    and Windy

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 13. Blustery, with a northwest wind 14 to 21 mph, with gusts as high as 28 mph.

    Low: 13 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 33. Northwest wind 6 to 10 mph becoming southwest in the afternoon.

    High: 33 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 28. Light southeast wind becoming south 9 to 14 mph in the evening. Winds could gust as high as 23 mph.

    Low: 28 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

Overnight
A chance of rain and snow before 1am, then a chance of snow between 1am and 4am. Cloudy, with a low around 21. Blustery, with a northwest wind 23 to 28 mph, with gusts as high as 36 mph. Chance of precipitation is 40%.
Monday
A chance of snow, mainly before 2pm, then a chance of flurries after 3pm. Cloudy, with a high near 27. Windy, with a northwest wind 26 to 30 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 13. Blustery, with a northwest wind 14 to 21 mph, with gusts as high as 28 mph.
Tuesday
Sunny, with a high near 33. Northwest wind 6 to 10 mph becoming southwest in the afternoon.
Tuesday Night
A 40 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 28. Light southeast wind becoming south 9 to 14 mph in the evening. Winds could gust as high as 23 mph.
Wednesday
Mostly sunny, with a high near 58.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 42.
Friday
Mostly sunny, with a high near 71.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grantfork IL
 38.82°N 89.65°W (Elev. 577 ft)
Last Update:
12:11 am CDT Mar 16, 2026
Forecast Valid:
12am CDT Mar 16, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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