National Weather Service

News Headlines

August 9, 2026: Two Rounds of Severe Thunderstorms, Including Late Night Tornadoes in North-Central Illinois
August 11, 2026: Powerful Morning Derecho Produces Widespread Wind Damage and Tornadoes Across Northern Illinois and Northwest Indiana

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Valparaiso Porter County Municipal Airport (KVPZ)

Lat: 41.45°NLon: 87°WElev: 768ft.

Fair

76°F

24°C

Humidity	52%
Wind Speed	Vrbl 6 mph
Barometer	29.96 in (1014.1 mb)
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	22 Aug 1:56 pm CDT

More Information:

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

Extended Forecast for

Demotte IN

This Afternoon
High: 78 °F
Slight Chance
T-storms
Tonight
Low: 57 °F
Slight Chance
T-storms then
Mostly Clear
Sunday
High: 75 °F
Sunny
Sunday Night
Low: 53 °F
Partly Cloudy
Monday
High: 76 °F
Mostly Sunny
Monday Night
Low: 55 °F
Mostly Clear
Tuesday
High: 78 °F
Mostly Sunny
Tuesday Night
Low: 60 °F
Partly Cloudy
Wednesday
High: 82 °F
Mostly Sunny
then Chance
Showers

Detailed Forecast

This Afternoon

A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 78. West northwest wind around 10 mph, with gusts as high as 20 mph.

Tonight

A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 57. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.

Sunday

Sunny, with a high near 75. Light west northwest wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

Sunday Night

Partly cloudy, with a low around 53. Calm wind.

Monday

Mostly sunny, with a high near 76. Calm wind becoming west around 5 mph.

Monday Night

Mostly clear, with a low around 55.

Tuesday

Mostly sunny, with a high near 78.

Tuesday Night

Partly cloudy, with a low around 60.