Dangerous Heat and Humidity Continues Over the Midwest/ East; Severe Thunderstorms Upper Midwest Into Great Lakes

Oppressive heat and humidity will continue through today from the Midwest to the East Coast. The Midwest will get a slight reprieve on Sunday as a cold front moves through the area, while excessive heat continues in the East. Severe thunderstorms capable of damaging wind gusts are forecast into tonight across portions of Iowa, Illinois and Wisconsin into Lower Michigan. Read More >

Hazardous Weather Conditions

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Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Partly Cloudy

93°F

34°C

Humidity	54%
Wind Speed	S 6 mph
Barometer	29.90 in (1011.4 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	103°F (39°C)
Last update	20 Jul 2:54 pm CDT

More Information:

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

Extended Forecast for

4 Miles ENE New Melle MO

Excessive Heat Warning until July 21, 08:00pm

Click here for hazard details and duration

Excessive Heat Warning

Excessive Heat Warning until July 21, 08:00pm

NOW until
8:00pm Sun

Excessive Heat Warning
This
Afternoon

Mostly Sunny
High: 95 °F
Tonight

Mostly Clear
Low: 78 °F
Sunday

Slight Chance
T-storms
High: 92 °F
Sunday
Night

T-storms
Likely
Low: 69 °F
Monday

Chance
T-storms
High: 79 °F
Monday
Night

Mostly Clear
Low: 62 °F
Tuesday

Sunny
High: 81 °F
Tuesday
Night

Mostly Clear
Low: 61 °F

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 95. Heat index values as high as 107. South wind around 8 mph.

Tonight

Mostly clear, with a low around 78. South wind 5 to 7 mph.

Sunday

A 20 percent chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 92. Heat index values as high as 103. West wind around 6 mph becoming northwest in the afternoon.

Sunday Night

Showers and thunderstorms likely. Increasing clouds, with a low around 69. Calm wind. Chance of precipitation is 60%.

Monday

A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 79. North wind 6 to 8 mph, with gusts as high as 20 mph.

Monday Night

Mostly clear, with a low around 62.

Tuesday

Sunny, with a high near 81.

Tuesday Night

Mostly clear, with a low around 61.

Wednesday

Sunny, with a high near 82.