Ontario, CA Hourly Weather

Hour-by-Hour Forecast

Today's Weather Breakdown

Currently 58°F and clear. Today in Ontario, CA: high of 86°F, low of 56°F with partially cloudy. Dry conditions expected throughout the day.

Currently58°F · Clear
Today's High86°F
Today's Low56°F
Rain Chance0%

Hour-by-Hour Temperature & Rain Probability

In Ontario, CA today, temperatures start near 56°F in the early morning and climb toward a high of 86°F in the afternoon. No significant rain is expected — good conditions for outdoor plans throughout the day.

Reading the Hourly Weather Forecast

The hour-by-hour table shows temperature, feels-like temperature, precipitation probability, wind speed, humidity, and UV index for each hour of the day in Ontario. Rain probability above 40% for a given hour indicates a meaningful chance of precipitation during that window. UV index above 6 means sun protection is recommended for extended time outdoors.

Hourly forecasts are updated from live weather station data. For the full multi-day picture, see the Ontario 10-day forecast or check tomorrow's rain forecast for precipitation timing.

Hour-by-Hour Forecast for Ontario, CA

TimeTempFeels LikeRainConditions
12:00 AM65°F65°F0%Clear
1:00 AM61°F61°F0%Clear
2:00 AM59°F59°F0%Clear
3:00 AM60°F60°F0%Clear
4:00 AM58°F58°F0%Clear
5:00 AM57°F57°F0%Clear
6:00 AM57°F57°F0%Clear
7:00 AM56°F56°F0%Clear
8:00 AM60°F60°F0%Partially cloudy
9:00 AM65°F65°F0%Partially cloudy
10:00 AM70°F70°F0%Partially cloudy
11:00 AM78°F78°F0%Partially cloudy
12:00 PM83°F81°F0%Partially cloudy
1:00 PM85°F82°F0%Partially cloudy
2:00 PM86°F83°F0%Partially cloudy
3:00 PM86°F83°F0%Partially cloudy
4:00 PM85°F82°F0%Partially cloudy
5:00 PM84°F81°F0%Partially cloudy
6:00 PM82°F80°F0%Partially cloudy
7:00 PM76°F76°F0%Partially cloudy
8:00 PM72°F72°F0%Partially cloudy
9:00 PM69°F69°F0%Partially cloudy
10:00 PM67°F67°F0%Partially cloudy
11:00 PM65°F65°F0%Partially cloudy

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