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Ontario, CA

98°F
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Ontario, CA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center

Today

 Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities
Extreme Heat Warning

Today's Weather

Tue, Oct 6

Sunny and very hot; the heat will be dangerous, especially for those without air conditioning Hi: 99°

Tonight: Clear and very warm; little heat relief; uncomfortable for sleeping without air conditioning Lo: 75°

Current Weather

3:45 PM

98°F
RealFeel® 99°
Sunny More Details
RealFeel Shade™ 95°
Heat Index 95°
Wind WSW 5 mph
Wind Gusts 10 mph
Air Quality Poor

Looking Ahead

The intense, record-breaking heat wave continues this week; notably cooler over the weekend

Ontario Weather Radar

Ontario Weather Radar
Static Radar Temporarily Unavailable
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Clouds
Temperature

Hourly Weather

4 PM 99°
rain drop 0%
5 PM 97°
rain drop 0%
6 PM 94°
rain drop 0%
7 PM 91°
rain drop 0%
8 PM 88°
rain drop 0%
9 PM 85°
rain drop 0%
10 PM 83°
rain drop 0%
11 PM 82°
rain drop 0%
12 AM 81°
rain drop 0%
1 AM 80°
rain drop 0%
2 AM 79°
rain drop 0%
3 AM 78°
rain drop 0%

10-Day Weather Forecast

Today

10/6

99° 75°

Sunny and very hot

Night: Clear and very warm
0%

Wed

10/7

100° 73°

Very hot with sunshine

Clear and very warm
0%

Thu

10/8

100° 70°

Record-tying temperatures

Mainly clear and warm
1%

Fri

10/9

96° 68°

Sunshine and hot

Partly cloudy and warm
1%

Sat

10/10

91° 66°

A passing afternoon shower

Cloudy and warm
58%

Sun

10/11

80° 60°

Breezy and not as warm

A couple of showers possible
25%

Mon

10/12

73° 57°

Brisk and cool

A couple of showers possible
30%

Tue

10/13

81° 56°

Chance of a shower

Mainly clear
30%

Wed

10/14

80° 58°

Abundant sunshine

Clear
0%

Thu

10/15

85° 59°

Plenty of sunshine

Clear
0%

Sun & Moon

11 hrs 39 mins
Rise 6:49 AM
Set 6:28 PM
Waning Crescent
Rise 2:39 AM
Set 4:22 PM

Air Quality

See More
Air Quality Poor

The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.

Allergy Outlook

See All
Tree Pollen Low Data is not supported in this location Ragweed Pollen Moderate Data is not supported in this location Mold Low Data is not supported in this location Grass Pollen Low Data is not supported in this location Dust & Dander High Data is not supported in this location

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World North America United States California Ontario

Weather Near Ontario:

  • Anaheim, CA
  • Long Beach, CA
  • Los Angeles, CA
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