Dangerous heat and humidity from the central U.S. to East Coast this weekend

Hot and very humid conditions will push the heat index to well over 100 degrees across a large portion of the central and eastern U.S. Excessive Heat Warnings and Heat Advisories are in effect for much of the Plains, Miss. Valley, Midwest, Ohio Valley, Mid-Atlantic and southern states. Be very cautious if you must do outdoor activities in these areas during the afternoon and evening this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Ontario, Ontario International Airport (KONT)

Lat: 34.05333°NLon: 117.57583°WElev: 942ft.

Fair

75°F

24°C

Humidity 54%
Wind Speed calm
Barometer 29.88 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 24 Jul 7:35 am PDT
Extended Forecast for

2 Miles SW Rancho Cucamonga CA

Heat Advisory until July 24, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until July 24, 08:00pm

    NOW until
    8:00pm Sun

    Heat Advisory

  • Today

    Today: Sunny, with a high near 95. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    Sunny

    High: 95 °F

  • Tonight

    Tonight: Mostly clear, with a low around 70. West wind 10 to 15 mph becoming light southwest  after midnight. Winds could gust as high as 25 mph.

    Mostly Clear

    Low: 70 °F

  • Monday

    Monday: Sunny, with a high near 95. Southeast wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    Sunny

    High: 95 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 69. West wind 10 to 15 mph decreasing to 5 to 10 mph in the evening. Winds could gust as high as 25 mph.

    Mostly Clear

    Low: 69 °F

  • Tuesday

    Tuesday: Sunny, with a high near 97. West wind 5 to 15 mph, with gusts as high as 20 mph.

    Sunny

    High: 97 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 69.

    Mostly Clear

    Low: 69 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 95.

    Mostly Sunny

    High: 95 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 68.

    Mostly Clear

    Low: 68 °F

Detailed Forecast

Today
Sunny, with a high near 95. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Tonight
Mostly clear, with a low around 70. West wind 10 to 15 mph becoming light southwest after midnight. Winds could gust as high as 25 mph.
Monday
Sunny, with a high near 95. Southeast wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Monday Night
Mostly clear, with a low around 69. West wind 10 to 15 mph decreasing to 5 to 10 mph in the evening. Winds could gust as high as 25 mph.
Tuesday
Sunny, with a high near 97. West wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Mostly sunny, with a high near 95.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny, with a high near 95.
Thursday Night
Mostly clear, with a low around 69.
Friday
Sunny, with a high near 94.
Friday Night
Mostly clear, with a low around 69.
Saturday
Mostly sunny, with a high near 94.
Click Map For Forecast
Point Forecast:
2 Miles SW Rancho Cucamonga CA
 34.1°N 117.59°W (Elev. 1224 ft)
2:47 am PDT Jul 24, 2016
7am PDT Jul 24, 2016-6pm PDT Jul 30, 2016
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database