


Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fog/Mist
73°F
23°C
Humidity | 98% |
Wind Speed | Calm |
Barometer | 30.04 in |
Dewpoint | 72°F (22°C) |
Visibility | 5.00 mi |
Last update | 15 Jul 1:55 am CDT |
Extended Forecast for
2 Miles WSW Alton IL
Overnight
Low: 71 °F
Mostly Cloudy
Tuesday
High: 88 °F
Mostly Cloudy
then Chance
T-stormsTuesday Night
Low: 72 °F
Slight Chance
T-storms then
Partly CloudyWednesday
High: 95 °F
Sunny
Wednesday Night
Low: 75 °F
Slight Chance
T-stormsThursday
High: 89 °F
Mostly Sunny
then Chance
T-stormsThursday Night
Low: 71 °F
Chance
T-stormsFriday
High: 86 °F
Mostly Cloudy
then Chance
T-stormsFriday Night
Low: 73 °F
Slight Chance
T-storms
Detailed Forecast
Overnight
Mostly cloudy, with a low around 71. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 88. Light and variable wind becoming south 5 to 7 mph in the morning.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 72. South wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 95. Heat index values as high as 102. Calm wind becoming southwest 5 to 7 mph in the morning.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. Southwest wind around 6 mph.
Thursday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 71.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 86.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 92.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
2 Miles WSW Alton IL
38.88°N 90.19°W (Elev. 407 ft)
38.88°N 90.19°W (Elev. 407 ft)
1:51 am CDT Jul 15, 2025
2am CDT Jul 15, 2025-6pm CDT Jul 21, 2025