National Weather Service

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August 11, 2026: Derecho produces widespread wind damage and tornadoes across northern Illinois and northwest Indiana
NOAA All Hazards Radio Test Postponed

Hazardous Weather Conditions

Current conditions at

Pontiac Municipal Airport (KPNT)

Lat: 40.92°NLon: 88.62°WElev: 650ft.

Overcast

72°F

22°C

Humidity	100%
Wind Speed	NE 3 mph
Barometer	30.06 in
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Last update	14 Aug 8:55 am CDT

More Information:

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

Extended Forecast for

Forrest ILSimilar City Names

Flood Watch August 14, 09:17am until August 14, 10:00am

Click here for hazard details and duration

...

Flood Watch August 14, 09:17am until August 14, 10:00am
NOW until 10:00am Fri
Flood Watch
Today
High: 81 °F
Showers then
Scattered
Showers
Tonight
Low: 71 °F
Chance
T-storms then
Showers
Likely
Saturday
High: 89 °F
Showers
Likely
Saturday Night
Low: 73 °F
Slight Chance
T-storms then
Chance
Showers
Sunday
High: 87 °F
Slight Chance
T-storms then
Showers
Likely
Sunday Night
Low: 67 °F
Slight Chance
T-storms then
Slight Chance
Showers
Monday
High: 81 °F
Mostly Sunny
Monday Night
Low: 60 °F
Partly Cloudy

Detailed Forecast

Today

Showers and possibly a thunderstorm before 11am, then scattered showers and thunderstorms between 11am and 1pm, then isolated showers after 1pm. High near 81. East northeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 71. East wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Saturday

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms, mainly between 1pm and 4pm. Mostly cloudy, with a high near 89. Heat index values as high as 102. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. West southwest wind around 5 mph, with gusts as high as 10 mph.

Sunday

A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 87. West northwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.

Sunday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 20%.

Monday

Mostly sunny, with a high near 81.

Monday Night

Partly cloudy, with a low around 60.

Tuesday

Sunny, with a high near 82.

Tuesday Night

Partly cloudy, with a low around 65.

Wednesday

A chance of showers. Partly sunny, with a high near 84.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 65.