Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

Pontiac Municipal Airport (KPNT)

Lat: 40.92°NLon: 88.62°WElev: 650ft.

Fair

91°F

33°C

Humidity	64%
Wind Speed	W 5 mph
Barometer	30.02 in
Dewpoint	77°F (25°C)
Visibility	10.00 mi
Heat Index	105°F (41°C)
Last update	16 Aug 4:35 pm CDT

More Information:

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

Extended Forecast for

Pontiac IL

Heat Advisory August 16, 04:47pm until August 16, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 16, 04:47pm until August 16, 08:00pm
NOW until 8:00pm Sat
Heat Advisory
This Afternoon
High: 93 °F
Slight Chance
T-storms
Tonight
Low: 73 °F
Chance
T-storms
Sunday
High: 88 °F
Slight Chance
T-storms
Sunday Night
Low: 71 °F
Partly Cloudy
Monday
High: 92 °F
Slight Chance
T-storms
Monday Night
Low: 73 °F
Mostly Clear
then Slight
Chance
T-storms
Tuesday
High: 91 °F
Chance
T-storms
Tuesday Night
Low: 66 °F
Partly Cloudy

Detailed Forecast

This Afternoon

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Heat index values as high as 102. West southwest wind around 5 mph.

Tonight

A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 73. South southwest wind 5 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.

Sunday

A 20 percent chance of showers and thunderstorms after 10am. Partly sunny, with a high near 88. Heat index values as high as 100. Calm wind becoming northeast around 5 mph in the morning.

Sunday Night

Partly cloudy, with a low around 71. East wind 5 to 10 mph.

Monday

A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm. Sunny, with a high near 92. Southeast wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 20%.

Monday Night

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

Tuesday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91.

Tuesday Night

Partly cloudy, with a low around 66.

Wednesday

Partly sunny, with a high near 80.

Wednesday Night

Partly cloudy, with a low around 62.

Thursday

Sunny, with a high near 82.