NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment

After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Mostly Cloudy

84°F

29°C

Humidity	62%
Wind Speed	W 6 mph
Barometer	29.96 in
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	88°F (31°C)
Last update	6 Jun 10:50 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Bethalto IL

Today
High: 88 °F
Chance
T-storms
Tonight
Low: 70 °F
Slight Chance
T-storms then
Mostly Cloudy
Sunday
High: 87 °F
Chance
T-storms
Sunday Night
Low: 70 °F
Chance
T-storms then
Showers
Likely
Monday
High: 85 °F
Showers
Monday Night
Low: 71 °F
T-storms
Likely
Tuesday
High: 91 °F
Chance
T-storms
Tuesday Night
Low: 74 °F
Slight Chance
T-storms
Wednesday
High: 95 °F
Sunny

Detailed Forecast

Today

A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 88. Southwest wind around 9 mph.

Tonight

A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 70. Southwest wind 5 to 7 mph becoming calm in the evening.

Sunday

A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly cloudy, with a high near 87. Light southeast wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 30%.

Sunday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. Southeast wind 7 to 11 mph. Chance of precipitation is 60%.

Monday

Showers and possibly a thunderstorm. High near 85. South wind 9 to 11 mph. Chance of precipitation is 90%.

Monday Night

Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then showers and thunderstorms likely after 1am. Mostly cloudy, with a low around 71. Chance of precipitation is 70%.

Tuesday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.

Tuesday Night

A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 74.

Wednesday

Sunny, with a high near 95.

Wednesday Night

Mostly clear, with a low around 76.

Thursday

A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.

Thursday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.