


Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Partly Cloudy
93°F
34°C
Humidity | 50% |
Wind Speed | W 10 mph |
Barometer | 30.12 in |
Dewpoint | 72°F (22°C) |
Visibility | 10.00 mi |
Heat Index | 101°F (38°C) |
Last update | 25 Jun 1:50 pm CDT |
Extended Forecast for
West Alton MO
Heat Advisory June 25, 02:40pm until June 26, 09:00pm
NOW until 9:00pm Thu
Heat Advisory
This Afternoon
High: 95 °F
Chance
T-stormsTonight
Low: 75 °F
Slight Chance
T-storms then
Mostly ClearThursday
High: 95 °F
Sunny then
Slight Chance
T-stormsThursday Night
Low: 76 °F
Partly Cloudy
Friday
High: 92 °F
Slight Chance
Showers then
Chance
T-stormsFriday Night
Low: 74 °F
Chance
T-stormsSaturday
High: 93 °F
Chance
T-stormsSaturday Night
Low: 74 °F
Chance
T-storms
Detailed Forecast
This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 95. Heat index values as high as 101. Southwest wind around 6 mph becoming southeast.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 75. South wind 3 to 6 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 95. Heat index values as high as 101. Light southwest wind increasing to 5 to 9 mph in the morning.
Thursday Night
Partly cloudy, with a low around 76. Southwest wind 5 to 8 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. West wind 6 to 10 mph. Chance of precipitation is 40%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 74.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 93.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
West Alton MO
38.86°N 90.22°W (Elev. 427 ft)
38.86°N 90.22°W (Elev. 427 ft)
2:36 pm CDT Jun 25, 2025
2pm CDT Jun 25, 2025-6pm CDT Jul 1, 2025