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

Areas of Hazardous Weather This Weekend

A series of cold fronts from North Pacific storms will bring periods of gusty winds, low elevation rainfall, and high elevation snow to the Pacific Northwest this weekend into next week. Heavy to excessive rainfall may produce areas of flooding over southern Texas this weekend. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

36°F

2°C

Humidity 93%
Wind Speed Calm
Barometer 30.21 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 7 Nov 9:45 pm CST
Extended Forecast for

3 Miles WNW Alton IL

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, clear, with a low around 35. Calm wind becoming southwest around 5 mph after midnight.

    Low: 35 °F

    Clear then
    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 8am. Otherwise, sunny, with a high near 62. Southwest wind 5 to 10 mph becoming west in the afternoon.

    High: 62 °F

    Areas Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. Northwest wind around 6 mph becoming calm in the evening.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 64. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 45. West wind 3 to 6 mph.

    Low: 45 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: A 30 percent chance of rain after noon. Partly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    Rain then
    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, clear, with a low around 35. Calm wind becoming southwest around 5 mph after midnight.
Sunday
Areas of fog before 8am. Otherwise, sunny, with a high near 62. Southwest wind 5 to 10 mph becoming west in the afternoon.
Sunday Night
Mostly clear, with a low around 39. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 64. Calm wind becoming southwest around 6 mph in the afternoon.
Monday Night
Clear, with a low around 45. West wind 3 to 6 mph.
Tuesday
Sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 46.
Veterans Day
A 30 percent chance of rain after noon. Partly sunny, with a high near 64.
Wednesday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 43.
Thursday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 54.
Thursday Night
Partly cloudy, with a low around 34.
Friday
Mostly sunny, with a high near 51.
Friday Night
Mostly clear, with a low around 34.
Saturday
Sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Alton IL
 38.93°N 90.22°W (Elev. 597 ft)
Last Update:
8:51 pm CST Nov 7, 2026
Forecast Valid:
9pm CST Nov 7, 2026-6pm CST Nov 14, 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