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 Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

80°F

27°C

Humidity	89%
Wind Speed	E 5 mph
Barometer	30.02 in
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	85°F (29°C)
Last update	15 Aug 1:35 am CDT

More Information:

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

Extended Forecast for

Troy ILSimilar City Names

Extreme Heat Warning August 15, 01:56am until August 16, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 15, 01:56am until August 16, 09:00pm
NOW until 9:00pm Sun
Extreme Heat Warning
Overnight
Low: 76 °F
Partly Cloudy
Saturday
High: 93 °F
Slight Chance
T-storms then
Mostly Sunny
Saturday Night
Low: 77 °F
Mostly Clear
Sunday
High: 93 °F
Partly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 72 °F
Chance
T-storms then
Chance
Showers
Monday
High: 85 °F
Mostly Sunny
Monday Night
Low: 67 °F
Partly Cloudy
Tuesday
High: 88 °F
Sunny

Detailed Forecast

Overnight

Partly cloudy, with a low around 76. Southeast wind around 6 mph.

Saturday

A slight chance of showers and thunderstorms between 8am and 10am. Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 109. Light and variable wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 20%.

Saturday Night

Mostly clear, with a low around 77. Calm wind becoming southwest around 5 mph after midnight.

Sunday

A 20 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 93. Heat index values as high as 109. Northwest wind 5 to 8 mph.

Sunday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 72. North wind 5 to 8 mph. Chance of precipitation is 30%.

Monday

Mostly sunny, with a high near 85.

Monday Night

Partly cloudy, with a low around 67.

Tuesday

Sunny, with a high near 88.

Tuesday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.

Wednesday

A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.