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 >

Hazardous Weather Conditions

Heat Advisory in effect from July 26, 12:00 PM CDT until July 26, 08:00 PM CDT

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Overcast

79°F

26°C

Humidity	74%
Wind Speed	SW 3 mph
Barometer	29.98 in
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	25 Jul 2:56 pm CDT

More Information:

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

Extended Forecast for

Ottawa IL

Heat Advisory July 26, 12:00pm until July 26, 08:00pm

Click here for hazard details and duration

Heat Advisory

This Afternoon
High: 80 °F
Cloudy
Tonight
Low: 71 °F
Mostly Cloudy
then Patchy
Fog
Sunday
High: 91 °F
Patchy Fog
then Partly
Sunny
Sunday Night
Low: 76 °F
Slight Chance
T-storms
Monday
High: 94 °F
Chance
T-storms
Monday Night
Low: 72 °F
Mostly Clear
Tuesday
High: 87 °F
Mostly Sunny
Tuesday Night
Low: 64 °F
Mostly Clear
Wednesday
High: 85 °F
Sunny

Detailed Forecast

This Afternoon

Cloudy, with a high near 80. South southwest wind around 5 mph, with gusts as high as 10 mph.

Tonight

Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening.

Sunday

Patchy fog before 8am. Otherwise, partly sunny, with a high near 91. Heat index values as high as 105. Light south southeast wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

Sunday Night

A slight chance of showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 76. South southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

Monday

A 30 percent chance of showers and thunderstorms, mainly between 7am and 1pm. Mostly sunny, with a high near 94. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.

Monday Night

Mostly clear, with a low around 72.

Tuesday

Mostly sunny, with a high near 87.

Tuesday Night

Mostly clear, with a low around 64.

Wednesday

Sunny, with a high near 85.

Wednesday Night

Mostly clear, with a low around 64.

Thursday

Mostly sunny, with a high near 86.