Severe Thunderstorm and Flash Flooding Risks from Southern Plains to Midwest; Heat Wave Developing in the Southeast

Severe thunderstorms and flash flooding will again be possible from the Southern Plains into the Midwest on Friday. Periodic risks of severe thunderstorms, along with flash flooding, are forecast from the Central and Southern Plains to the Great Lakes and Northeast into the Memorial Day weekend. Temperatures across much of the East will run above normal where they will hold into Memorial Day. Read More >

Current conditions at

Ontario International Airport (KONT)

Lat: 34.05316°NLon: 117.57685°WElev: 906ft.

Fair

54°F

12°C

Humidity 88%
Wind Speed calm
Barometer 29.98 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 24 May 6:20 am PDT
Extended Forecast for

3 Miles SSE Rancho Cucamonga CA

  • Today

    Today: Sunny, with a high near 75. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    Sunny

    High: 75 °F

  • Tonight

    Tonight: Mostly clear, with a low around 53. West wind 10 to 15 mph becoming light  in the evening. Winds could gust as high as 25 mph.

    Mostly Clear

    Low: 53 °F

  • Saturday

    Saturday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 71. Light southwest wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    Patchy Fog
    then Sunny

    High: 71 °F

  • Saturday
    Night

    Saturday Night: A chance of showers after 11pm.  Increasing clouds, with a low around 53. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers

    Low: 53 °F

  • Sunday

    Sunday: Showers likely, mainly after 11am.  Mostly cloudy, with a high near 58. West wind 5 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Showers
    Likely

    High: 58 °F

  • Sunday
    Night

    Sunday Night: A chance of showers.  Mostly cloudy, with a low around 50. Chance of precipitation is 50%.

    Chance
    Showers

    Low: 50 °F

  • Memorial
    Day

    Memorial Day: Mostly sunny, with a high near 66.

    Mostly Sunny

    High: 66 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 52.

    Mostly Clear

    Low: 52 °F

  • Tuesday

    Tuesday: Sunny, with a high near 75.

    Sunny

    High: 75 °F

Detailed Forecast

Today
Sunny, with a high near 75. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 53. West wind 10 to 15 mph becoming light in the evening. Winds could gust as high as 25 mph.
Saturday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 71. Light southwest wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Saturday Night
A chance of showers after 11pm. Increasing clouds, with a low around 53. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 58. West wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.
Memorial Day
Mostly sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 81.
Click Map For Forecast
Point Forecast:
3 Miles SSE Rancho Cucamonga CA
 34.09°N 117.53°W (Elev. 1106 ft)
2:47 am PDT May 24, 2019
6am PDT May 24, 2019-6pm PDT May 30, 2019
 
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