Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Current conditions at

Pontiac Municipal Airport (KPNT)

Lat: 40.92°NLon: 88.62°WElev: 650ft.

Overcast

75°F

24°C

Humidity	85%
Wind Speed	NA
Barometer	29.99 in
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Last update	25 Jul 4:35 pm CDT

More Information:

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

Extended Forecast for

Sibley IL

Tonight
Low: 68 °F
Mostly Cloudy
then Patchy
Fog
Sunday
High: 89 °F
Patchy Fog
then Partly
Sunny
Sunday Night
Low: 73 °F
Slight Chance
T-storms
Monday
High: 93 °F
Chance
T-storms
Monday Night
Low: 72 °F
Chance
T-storms
Tuesday
High: 86 °F
Mostly Sunny
Tuesday Night
Low: 62 °F
Mostly Clear
Wednesday
High: 84 °F
Sunny
Wednesday Night
Low: 61 °F
Mostly Clear

Detailed Forecast

Tonight

Patchy fog after 3am. Otherwise, cloudy during the early evening, then becoming partly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening.

Sunday

Patchy fog before 8am. Otherwise, partly sunny, with a high near 89. Heat index values as high as 102. Calm wind becoming southwest around 5 mph in the afternoon. Winds could gust as high as 15 mph.

Sunday Night

A 20 percent chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 73. South southwest wind 5 to 10 mph.

Monday

A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93. Heat index values as high as 108. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Monday Night

A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 72. Southwest wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.

Tuesday

Mostly sunny, with a high near 86.

Tuesday Night

Mostly clear, with a low around 62.

Wednesday

Sunny, with a high near 84.

Wednesday Night

Mostly clear, with a low around 61.

Thursday

Sunny, with a high near 84.

Thursday Night

Partly cloudy, with a low around 64.