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

72°F

22°C

Humidity	83%
Wind Speed	E 10 mph
Barometer	29.84 in
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Last update	16 May 6:50 pm CDT

More Information:

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

Extended Forecast for

2 Miles WNW Pierron IL

Tonight
Low: 65 °F
Slight Chance
T-storms then
Mostly Cloudy
Sunday
High: 86 °F
Mostly Sunny
then Sunny
and Breezy
Sunday Night
Low: 69 °F
Increasing
Clouds
Monday
High: 87 °F
Breezy.
Slight Chance
T-storms then
T-storms
Likely
Monday Night
Low: 71 °F
Chance
T-storms then
Chance
Showers
Tuesday
High: 87 °F
Breezy.
Showers
Likely then
Showers
Tuesday Night
Low: 61 °F
Showers
Wednesday
High: 72 °F
Slight Chance
T-storms
Wednesday Night
Low: 52 °F
Slight Chance
Showers

Detailed Forecast

Tonight

A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 65. Southeast wind around 8 mph.

Sunday

Partly sunny, then gradually becoming sunny, with a high near 86. Breezy, with a south wind 11 to 21 mph, with gusts as high as 28 mph.

Sunday Night

Increasing clouds, with a low around 69. South wind 13 to 17 mph, with gusts as high as 25 mph.

Monday

Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 87. Breezy, with a south wind 16 to 21 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

Monday Night

A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 71. South wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

Tuesday

Showers and possibly a thunderstorm. High near 87. Breezy. Chance of precipitation is 90%.

Tuesday Night

Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 61. Chance of precipitation is 80%.

Wednesday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 72.

Wednesday Night

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

Thursday

Partly sunny, with a high near 70.

Thursday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 53.