Heat Expands for Center of the Nation; Severe Thunderstorms for Plains and Upper Midwest

Dangerous heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest. Critical fire weather for portions of the Intermountain West. Risk for severe thunderstorms and flash flooding across the Upper Midwest/Great Lakes, Ohio Valley, and portions of the mid-Atlantic. Active monsoonal moisture fuels thunderstorms over the Southwest. Hurricane Fausto in the Pacific, should weaken Read More >

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fog/Mist

73°F

23°C

Humidity	94%
Wind Speed	SW 5 mph
Barometer	29.95 in
Dewpoint	72°F (22°C)
Visibility	4.00 mi
Last update	26 Jul 7:57 am 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

Today
High: 90 °F
Partly Sunny
Tonight
Low: 75 °F
Partly Cloudy
then Chance
T-storms
Monday
High: 92 °F
Chance
T-storms
Monday Night
Low: 73 °F
Slight Chance
T-storms
Tuesday
High: 84 °F
Mostly Sunny
Tuesday Night
Low: 62 °F
Mostly Clear
Wednesday
High: 82 °F
Sunny
Wednesday Night
Low: 62 °F
Mostly Clear
Thursday
High: 87 °F
Mostly Sunny

Detailed Forecast

Today

Partly sunny, with a high near 90. Heat index values as high as 103. South southwest wind around 5 mph, with gusts as high as 15 mph.

Tonight

A 30 percent chance of showers and thunderstorms, mainly between 1am and 4am. Partly cloudy, with a low around 75. South southwest wind around 5 mph, with gusts as high as 10 mph.

Monday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 92. Heat index values as high as 106. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

Monday Night

A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 73. West southwest wind 5 to 10 mph becoming north northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

Tuesday

Mostly sunny, with a high near 84. North wind around 10 mph, with gusts as high as 20 mph.

Tuesday Night

Mostly clear, with a low around 62.

Wednesday

Sunny, with a high near 82.

Wednesday Night

Mostly clear, with a low around 62.

Thursday

Mostly sunny, with a high near 87.

Thursday Night

Partly cloudy, with a low around 66.