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.

Rain

39°F

4°C

Humidity 93%
Wind Speed E 7 mph
Barometer 30.07 in
Dewpoint 37°F (3°C)
Visibility 3.00 mi
Wind Chill34°F (1°C)
Last update 3 Mar 6:50 am CST
Extended Forecast for

Grantfork IL

  • Today

    Today: Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. Patchy fog between 4pm and 5pm. High near 56. East wind 5 to 7 mph. Chance of precipitation is 90%.

    High: 56 °F

    Showers and
    Patchy Fog

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Patchy fog. Low around 48. East wind around 7 mph. Chance of precipitation is 90%.

    Low: 48 °F

    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Patchy fog before 10am. High near 63. East wind 5 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 90%.

    High: 63 °F

    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 54. South wind 5 to 7 mph. Chance of precipitation is 90%.

    Low: 54 °F

    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 68. Southwest wind 6 to 11 mph. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms before noon, then a slight chance of showers. Partly sunny, with a high near 77. Breezy. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    T-storms then
    Slight Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers, then showers and possibly a thunderstorm after midnight. Low around 58. Chance of precipitation is 80%.

    Low: 58 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before noon, then a slight chance of showers and thunderstorms after noon. Cloudy, with a high near 68. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely then
    Slight Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. Patchy fog between 4pm and 5pm. High near 56. East wind 5 to 7 mph. Chance of precipitation is 90%.
Tonight
Showers and possibly a thunderstorm. Patchy fog. Low around 48. East wind around 7 mph. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm. Patchy fog before 10am. High near 63. East wind 5 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 54. South wind 5 to 7 mph. Chance of precipitation is 90%.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 68. Southwest wind 6 to 11 mph. Chance of precipitation is 70%.
Thursday Night
A chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms before noon, then a slight chance of showers. Partly sunny, with a high near 77. Breezy. Chance of precipitation is 40%.
Friday Night
A chance of showers, then showers and possibly a thunderstorm after midnight. Low around 58. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm before noon, then a slight chance of showers and thunderstorms after noon. Cloudy, with a high near 68. Chance of precipitation is 70%.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 47.
Monday
A 20 percent chance of showers. Sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grantfork IL
 38.82°N 89.65°W (Elev. 577 ft)
Last Update:
4:46 am CST Mar 3, 2026
Forecast Valid:
7am CST Mar 3, 2026-6pm CDT Mar 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