Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Hazardous Weather Conditions

Extreme Heat Warning until August 16, 09:00 PM CDT

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

81°F

27°C

Humidity	85%
Wind Speed	Calm
Barometer	30.02 in (1016.2 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	15 Aug 11:53 pm CDT

More Information:

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

Extended Forecast for

2 Miles SSW Dupo IL

Extreme Heat Warning August 16, 12:03am until August 16, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 16, 12:03am until August 16, 09:00pm
NOW until 9:00pm Sun
Extreme Heat Warning
Overnight
Low: 76 °F
Slight Chance
T-storms
Sunday
High: 95 °F
Chance
T-storms
Sunday Night
Low: 73 °F
Chance
T-storms
Monday
High: 86 °F
Mostly Sunny
Monday Night
Low: 67 °F
Mostly Clear
Tuesday
High: 90 °F
Sunny
Tuesday Night
Low: 72 °F
Mostly Clear
then Slight
Chance
T-storms
Wednesday
High: 91 °F
Slight Chance
Showers

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 76. Light southwest wind.

Sunday

A chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 95. Heat index values as high as 114. West wind around 7 mph. Chance of precipitation is 30%.

Sunday Night

A 30 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 73. North wind around 6 mph.

Monday

Mostly sunny, with a high near 86. North wind 6 to 8 mph.

Monday Night

Mostly clear, with a low around 67. North wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 90.

Tuesday Night

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

Wednesday

A 20 percent chance of showers before 1pm. Partly sunny, with a high near 91.

Wednesday Night

A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 68. Chance of precipitation is 30%.

Thursday

A 20 percent chance of showers before 1pm. Partly sunny, with a high near 83.

Thursday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.

Friday

Mostly sunny, with a high near 84.

Friday Night

Partly cloudy, with a low around 65.

Saturday

Mostly sunny, with a high near 85.