Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Pontiac Municipal Airport (KPNT)

Lat: 40.92°NLon: 88.62°WElev: 650ft.

Fair

70°F

21°C

Humidity	85%
Wind Speed	S 3 mph
Barometer	29.98 in
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Last update	31 Aug 5:55 am CDT

More Information:

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

Extended Forecast for

4 Miles NE Blackstone IL

Today
High: 89 °F
Slight Chance
T-storms then
Mostly Sunny
Tonight
Low: 73 °F
Partly Cloudy
Tuesday
High: 92 °F
Mostly Sunny
Tuesday Night
Low: 74 °F
Mostly Clear
Wednesday
High: 94 °F
Sunny
Wednesday Night
Low: 72 °F
Mostly Clear
Thursday
High: 90 °F
Slight Chance
T-storms
Thursday Night
Low: 71 °F
Partly Cloudy
Friday
High: 91 °F
Mostly Sunny

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms before 9am. Mostly sunny, with a high near 89. Heat index values as high as 97. South southwest wind around 10 mph, with gusts as high as 20 mph.

Tonight

Partly cloudy, with a low around 73. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

Tuesday

Mostly sunny, with a high near 92. Heat index values as high as 101. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

Tuesday Night

Mostly clear, with a low around 74. South southwest wind around 5 mph, with gusts as high as 15 mph.

Wednesday

Sunny, with a high near 94. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

Wednesday Night

Mostly clear, with a low around 72.

Thursday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90.