Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Northeast weather to feel more like Thanksgiving than Memorial Day. See the temp forecast. Chevron right

Ontario, OR

51°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Ontario

Oregon

51°
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.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Ontario, OR 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

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

4 AM

50°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindNW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity56%

Indoor Humidity30% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling33000 ft

5 AM

48°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindN 4 mph

Air QualityFair

Wind Gusts5 mph

Humidity64%

Indoor Humidity31% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

6 AM

47°
RealFeel® 48°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindNE 4 mph

Air QualityFair

Wind Gusts4 mph

Humidity70%

Indoor Humidity32% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover2%

Visibility10 mi

Cloud Ceiling30000 ft

7 AM

50°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™50°

WindE 4 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts4 mph

Humidity63%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

54°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™55°

WindESE 2 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts4 mph

Humidity52%

Indoor Humidity32% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

59°
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™60°

WindESE 4 mph

Air QualityFair

Max UV Index3.3 (Moderate)

Wind Gusts4 mph

Humidity47%

Indoor Humidity34% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover21%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

65°
RealFeel® 73°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™63°

WindSE 4 mph

Air QualityFair

Max UV Index4.7 (Moderate)

Wind Gusts4 mph

Humidity37%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover14%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

70°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™68°

WindSE 4 mph

Air QualityFair

Max UV Index6.7 (High)

Wind Gusts5 mph

Humidity30%

Indoor Humidity30% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

74°
RealFeel® 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™72°

WindSE 5 mph

Air QualityFair

Max UV Index8.7 (Very High)

Wind Gusts5 mph

Humidity25%

Indoor Humidity25% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover9%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

78°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™75°

WindSE 5 mph

Air QualityFair

Max UV Index9.5 (Very High)

Wind Gusts6 mph

Humidity21%

Indoor Humidity21% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover14%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

81°
RealFeel® 91°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™78°

WindESE 5 mph

Air QualityFair

Max UV Index8.7 (Very High)

Wind Gusts6 mph

Humidity18%

Indoor Humidity18% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

83°
RealFeel® 90°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Partly sunny

RealFeel Shade™80°

Heat Index80°

WindE 5 mph

Air QualityFair

Max UV Index6.7 (High)

Wind Gusts6 mph

Humidity17%

Indoor Humidity17% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover39%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

84°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

RealFeel Shade™82°

Heat Index81°

WindE 6 mph

Air QualityFair

Max UV Index4.7 (Moderate)

Wind Gusts7 mph

Humidity16%

Indoor Humidity16% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover54%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

85°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

RealFeel Shade™83°

Heat Index82°

WindE 6 mph

Air QualityFair

Max UV Index3.1 (Moderate)

Wind Gusts7 mph

Humidity16%

Indoor Humidity16% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

85°
RealFeel® 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

RealFeel Shade™83°

Heat Index82°

WindENE 7 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts8 mph

Humidity17%

Indoor Humidity17% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover67%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

86°
RealFeel® 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

RealFeel Shade™84°

Heat Index83°

WindENE 6 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts7 mph

Humidity16%

Indoor Humidity16% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

84°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™82°

Heat Index81°

WindNE 5 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts6 mph

Humidity18%

Indoor Humidity18% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

80°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™78°

WindNNE 5 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts5 mph

Humidity23%

Indoor Humidity23% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

73°
RealFeel® 71°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindNNW 6 mph

Air QualityFair

Wind Gusts8 mph

Humidity30%

Indoor Humidity30% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

70°
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindNNW 7 mph

Air QualityFair

Wind Gusts9 mph

Humidity35%

Indoor Humidity35% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Ontario

AccuWeather's hourly forecast for Ontario provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 50° with a RealFeel® of 49°, clear with a 0% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

Further Ahead

Tomorrow

Monday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

Storms to bring needed rain, but also flood risk to Plains, Southeast

2 hours ago

Weather News

Southern California fires threaten homes and former nuclear site

17 hours ago

Weather Forecasts

It will feel more like Thanksgiving than Memorial Day in the Northeast

15 hours ago

Hurricane

Hurricane season hasn't started, but one area is already being watched

16 hours ago

Weather News

State of Emergency declared for Utah drought after 'no-pack' winter

14 hours ago

 More Stories

Featured Stories

Astronomy

SpaceX unleashes upgraded Starship rocket in 12th test flight

7 hours ago

Health

Melanoma survivor shares warning for Don’t Fry Day: ‘I changed everyth...

16 hours ago

Travel

Waymo recalls robotaxi fleet after one drove into Texas floodwaters

1 day ago

Recreation

It’s nearly Memorial Day, but this national park just had a snowstorm

2 days ago

Astronomy

Neptune’s moon Nereid may be survivor from ancient cosmic shake-up

1 day ago
World North America United States Oregon Ontario

Weather Near Ontario:

  • Boise, ID
  • Meridian, ID
  • Nampa, ID
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

...

...

...