Sarnia, Ontario, CA

Weather

As ofJul 06, 2026 10:15 PM

Current Temperature

70degrees Fahrenheit

Feels like:70°

Hi:--Lo:68°

Clear

Sarnia, Ontario, CA weather radar map

Windchill: 70°
Daily Rain: --"
Dew point: 61°
Monthly Rain: 1.95"
Humidity: 75%
Avg. Wind: N 8 mph
Pressure: --"
Wind Gust: -- mph
Sunrise: 5:57 AM
Moon: Waning Gibbous
Sunset: 9:10 PM
UV Index: 8 (Very High)

Tonight
Lo
Clear with scattered thunderstorms. Chance of storms 40%. Low temperature around 67F. Dew point will be around 64F with an average humidity of 91%. Winds will be 7 mph from the N.
Tomorrow
Hi
Partly cloudy with scattered thunderstorms. Chance of storms 60%. High temperature around 78F. Dew point will be around 68F with an average humidity of 90%. Winds will be 7 mph from the N.

Sarnia, Ontario, CA 10-day weather forecast

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Air Quality Index: 23|Fair
Top Triggers:: pm25

View Today's Air Quality details for Sarnia, Ontario, CA

Pollen Count: 2.1|Low
Predominant Pollen:: Grass, Sorrel/Dock, Plantain

Sarnia, Ontario, CA Pollen forecast details

Closest strike in the last 30 minutes:216.3 miles

No Lightning Nearby

Sarnia, Ontario, CA real-time lightning alerts & live Map

Today's Severe Weather Outlook

Slow-Moving Disturbance Set to Soak Northeast

Periods of rain and embedded thunderstorms will occur across parts of southern New England into the northern Mid-Atlantic today into Tuesday. Some of the rain will be heavy at times and could lead to localized flooding concerns.

Tuesday's Weather Outlook

Tuesday's Weather Outlook

Drought Monitor for July 2, 2026

Stormy, Soggy Summertime Leads to Widespread Drought Improvements

This house is flooded by the Cross Lake near Shreveport, La. Submitted by WeatherBug user Mary Nash on March 9, 2016.

Flood Safety Tips

Dry and cracking mud (Wikimedia Commons)

How Drought Affects Your Home And Garden

Young bearded man using electric fan at home. (EugeneEdge via Shutterstock)

How to Stay Cool When There's No A.C.

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