Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Mountain View, Moffett Field (KNUQ)

Lat: 37.40583°NLon: 122.04806°WElev: 33.0ft.

Clear

66°F

19°C

Humidity 77%
Wind Speed NW 10 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Aug 07:00 PM PDT
Extended Forecast for

3 Miles NE Sunnyvale CA

  • Tonight

    Tonight: Increasing clouds, with a low around 58. North northwest wind 5 to 9 mph becoming calm  after midnight.

    Low: 58 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 76. Light north northwest wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 76 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 59. Northwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 59 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming west northwest 5 to 9 mph in the afternoon.

    High: 77 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59. West northwest wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 58. North northwest wind 5 to 9 mph becoming calm after midnight.
Tuesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 76. Light north northwest wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
Increasing clouds, with a low around 59. Northwest wind 5 to 8 mph becoming calm in the evening.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming west northwest 5 to 9 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 59. West northwest wind 5 to 11 mph, with gusts as high as 21 mph.
Thursday
Partly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 58.
Monday
Mostly sunny, with a high near 75.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Sunnyvale CA
 37.41°N 121.97°W (Elev. 10 ft)
1:26 pm PDT Aug 17, 2026
7pm PDT Aug 17, 2026-6pm PDT Aug 24, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database