Fire Weather Concerns and Severe Weather

Dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the northern and central High Plains through this weekend, where fuels remain largely receptive. Severe thunderstorms and heavy rainfall are possible from the Plains into the Upper Midwest, as well as in the Ohio Valley and portions of the Mid-Atlantic through this weekend. Read More >

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66° N Lon: 90.66° W Elev: 463 ft.

Fair

82°F

28°C

Humidity	74%
Wind Speed	Calm
Barometer	29.89 in (1011.4 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	12 Sep 6:54 pm CDT

More Information:

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

Detailed forecast for

Jefferson County

Tonight

Mostly clear this evening, then becoming partly cloudy. Lows in the upper 60s. Light and variable winds.

Sunday

Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Northwest winds around 5 mph. Chance of rain 20 percent.

Sunday Night

Partly cloudy in the evening, then mostly cloudy with a slight chance of thunderstorms with isolated showers after midnight. Lows in the lower 60s. Northeast winds around 5 mph. Chance of rain 20 percent.

Monday

Partly sunny in the morning, then clearing. Highs in the upper 80s. East winds 5 to 10 mph.

Monday Night

Mostly clear. Lows in the upper 60s. Southeast winds 5 to 10 mph.

Tuesday

Sunny, hot with highs in the upper 90s. Heat index values up to 110.

Tuesday Night And Wednesday

Partly cloudy. Hot. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 105.

Wednesday Night

Partly cloudy in the evening, then mostly clear with a slight chance of showers after midnight. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening.

Thursday And Thursday Night

Partly cloudy. A chance of showers with a slight chance of thunderstorms. Highs in the lower 90s. Lows in the mid 60s. Chance of rain 30 percent. Heat index values up to 100.

Friday

Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20 percent.

Friday Night

Partly cloudy in the evening, then becoming mostly clear. A 20 percent chance of showers. Lows in the lower 60s.

Saturday

Mostly sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 30 percent.