For Business
|
Warnings
Data Suite
Forensics
Advertising
Superior Accuracy™

Summer is around the corner. Here's what AccuWeather is calling for across the U.S.

Polar vortex is linked to the next chill, frost coming to the eastern U.S. See the forecast.

Ontario, CA

Location

Location News Videos

Use Current Location

Recent

Ontario

California

No results found.

Try searching for a city, zip code or point of interest.

Create Your Account Unlock extended daily and hourly forecasts — all with your free account.

Have an account already? Log In

settings

Ontario, CA Weather

Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

May 1

Evening

5/1

61°

RealFeel® 61°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

Clear

WindWSW 6 mph

Wind Gusts14 mph

Humidity68%

Dew Point55°

Probability of Precipitation0%

Precipitation0.00 in

Cloud Cover10%

Visibility10 mi

Overnight

Day & Night

Sun & Moon

13 hrs 33 mins

Rise 6:02 AM

Set 7:35 PM

Full Moon

Rise 8:01 PM

Set 6:12 AM

Temperature History

5/1

High

Low

Forecast

80°

56°

Average

77°

52°

Last Year

70°

54°

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather News

5 killed in small plane crash in Texas, authorities say

51 minutes ago

Winter Weather

Polar vortex aftermath to bring chilly May days to Midwest, Northeast

2 hours ago

Weather News

Camp Mystic halts plans to reopen this summer

5 hours ago

Weather Forecasts

High-altitude storm to bring gusty thunderstorms to California

2 hours ago

Weather Forecasts

Rain to douse southern U.S. wildfire risk, ease drought into weekend

1 hour ago

Featured Stories

Astronomy

May's biggest astronomy events include shooting stars, rare Blue Moon

3 hours ago

Recreation

Watch: Yellowstone hot spring erupts twice in 2 days

3 hours ago

Severe Weather

First tornado in nearly 2 years confirmed in West Virginia

3 hours ago

Astronomy

SpaceX rocket debris is on a collision course with the moon

23 hours ago

Severe Weather

Texas police rescue mom from surging floodwater using jumper cables

1 day ago

World North America United States California Ontario

Weather Near Ontario:

Anaheim, CA
Long Beach, CA
Los Angeles, CA

Company

Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us

Products & Services

For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations

Apps & Downloads

iPhone App Android App See all Apps & Downloads

Subscription Services

AccuWeather Premium AccuWeather Professional

More

AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center

Company

Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us

Products & Services

For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations

Apps & Downloads

iPhone App Android App See all Apps & Downloads

Subscription Services

AccuWeather Premium AccuWeather Professional

More

AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center

© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.

Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...