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.

Fair

63°F

17°C

Humidity 30%
Wind Speed W 15 G 22 mph
Barometer 29.76 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 13 Jan 1:50 pm CST
Extended Forecast for

Bethalto IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 61. West wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 61 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 36. West wind 8 to 13 mph, with gusts as high as 23 mph.

    Low: 36 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of sprinkles and flurries before 8am, then a chance of flurries between 8am and 9am. Mostly cloudy through mid morning, then gradual clearing, with a temperature falling to around 30 by 5pm. Breezy, with a north wind 14 to 21 mph, with gusts as high as 30 mph.

    High: 38 °F⇓

    Breezy.
    Chance
    Sprinkles/Flurries
    then Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 16. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.

    Low: 16 °F

    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 31. Northwest wind 6 to 8 mph becoming south in the afternoon.

    High: 31 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a temperature rising to around 31 by 2am.

    Low: 26 °F⇑

    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 43. Breezy.

    High: 43 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Friday Night

    Friday Night: A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 20. Chance of precipitation is 20%.

    Low: 20 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 30.

    High: 30 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 61. West wind 9 to 14 mph, with gusts as high as 25 mph.
Tonight
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 36. West wind 8 to 13 mph, with gusts as high as 23 mph.
Wednesday
A chance of sprinkles and flurries before 8am, then a chance of flurries between 8am and 9am. Mostly cloudy through mid morning, then gradual clearing, with a temperature falling to around 30 by 5pm. Breezy, with a north wind 14 to 21 mph, with gusts as high as 30 mph.
Wednesday Night
Clear, with a low around 16. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny, with a high near 31. Northwest wind 6 to 8 mph becoming south in the afternoon.
Thursday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a temperature rising to around 31 by 2am.
Friday
Partly sunny, with a high near 43. Breezy.
Friday Night
A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 20. Chance of precipitation is 20%.
Saturday
Mostly cloudy, with a high near 30.
Saturday Night
Mostly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
Mostly clear, with a low around 12.
M.L.King Day
Mostly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bethalto IL
 38.88°N 90.02°W (Elev. 499 ft)
Last Update:
1:01 pm CST Jan 13, 2026
Forecast Valid:
2pm CST Jan 13, 2026-6pm CST Jan 19, 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