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

Heat Advisory until August 16, 09:00 PM CDT

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy

76°F

24°C

Humidity	96%
Wind Speed	Calm
Barometer	30.03 in
Dewpoint	74°F (23°C)
Visibility	7.00 mi
Heat Index	75°F (24°C)
Last update	15 Aug 5:15 am CDT

More Information:

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

Extended Forecast for

Pocahontas IL

Heat Advisory August 15, 05:29am until August 16, 09:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 15, 05:29am until August 16, 09:00pm
NOW until 9:00pm Sun
Heat Advisory
Today
High: 91 °F
Chance
T-storms then
Partly Sunny
Tonight
Low: 75 °F
Mostly Clear
Sunday
High: 91 °F
Partly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 71 °F
Chance
T-storms then
Chance
Showers
Monday
High: 85 °F
Mostly Sunny
Monday Night
Low: 66 °F
Partly Cloudy
Tuesday
High: 86 °F
Sunny
Tuesday Night
Low: 71 °F
Mostly Clear
then Slight
Chance
T-storms

Detailed Forecast

Today

A 30 percent chance of showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 91. Heat index values as high as 108. Calm wind becoming south around 6 mph in the morning.

Tonight

Mostly clear, with a low around 75. Light south wind.

Sunday

A 20 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 91. Heat index values as high as 109. West wind 3 to 7 mph.

Sunday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 71. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.

Monday

Mostly sunny, with a high near 85. North wind 3 to 6 mph.

Monday Night

Partly cloudy, with a low around 66.

Tuesday

Sunny, with a high near 86.

Tuesday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.

Wednesday

A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.

Wednesday Night

A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67.