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NWS Seeking Comments on Changes to Red Flag Warning Format

Hazardous Weather Conditions

Extreme Heat Warning until July 3, 10:00 PM CDT

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

76°F

24°C

Humidity	91%
Wind Speed	S 3 mph
Barometer	30.07 in (1017.7 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	76°F (24°C)
Last update	2 Jul 6:53 am CDT

More Information:

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

Extended Forecast for

2 Miles SE Swansea IL

Extreme Heat Warning July 2, 07:30am until July 3, 10:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning July 2, 07:30am until July 3, 10:00pm
NOW until 10:00pm Fri
Extreme Heat Warning
Today
High: 96 °F
Sunny then
Slight Chance
T-storms
Tonight
Low: 77 °F
Slight Chance
T-storms then
Mostly Clear
Friday
High: 96 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 76 °F
Slight Chance
T-storms
Independence Day
High: 95 °F
Sunny then
Chance
T-storms
Saturday Night
Low: 75 °F
Chance
Showers
Sunday
High: 93 °F
Mostly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 73 °F
Partly Cloudy

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 96. Heat index values as high as 110. South wind 3 to 7 mph.

Tonight

A 20 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 77. South wind 5 to 7 mph becoming calm after midnight.

Friday

A 20 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 96. Heat index values as high as 110. Calm wind becoming south 5 to 8 mph in the morning.

Friday Night

A slight chance of showers and thunderstorms. Mostly clear, with a low around 76. South wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 20%.

Independence Day

A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Calm wind becoming southwest around 5 mph in the morning.

Saturday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.

Sunday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93.

Sunday Night

Partly cloudy, with a low around 73.

Monday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.

Monday Night

A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72.

Tuesday

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.