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 >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair and Breezy

81°F

27°C

Humidity	62%
Wind Speed	S 21 G 31 mph
Barometer	29.91 in
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	17 May 11:45 am CDT

More Information:

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

Extended Forecast for

3 Miles NNW Troy IL

This Afternoon
High: 88 °F
Decreasing
Clouds and
Breezy
Tonight
Low: 72 °F
Increasing
Clouds
Monday
High: 86 °F
T-storms
Likely and
Breezy
Monday Night
Low: 70 °F
Slight Chance
T-storms
Tuesday
High: 86 °F
Showers
Likely then
Showers
Tuesday Night
Low: 58 °F
Showers
Likely
Wednesday
High: 70 °F
Partly Sunny
Wednesday Night
Low: 52 °F
Slight Chance
Showers
Thursday
High: 72 °F
Partly Sunny

Detailed Forecast

This Afternoon

Mostly cloudy, then gradually becoming sunny, with a high near 88. Breezy, with a south wind 20 to 22 mph, with gusts as high as 30 mph.

Tonight

Increasing clouds, with a low around 72. South wind 14 to 17 mph, with gusts as high as 24 mph.

Monday

Showers and thunderstorms likely, mainly between 1pm and 2pm. Mostly cloudy, with a high near 86. Breezy, with a south wind 15 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

Monday Night

A slight chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, then gradually becoming mostly clear, with a low around 70. South wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

Tuesday

Showers and possibly a thunderstorm. High near 86. South wind 13 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.

Tuesday Night

Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

Wednesday

Partly sunny, with a high near 70.

Wednesday Night

A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 52.

Thursday

Partly sunny, with a high near 72.

Thursday Night

A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 55.