National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Mountain View, Moffett Field (KNUQ)

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

Clear

63°F

17°C

Humidity 77%
Wind Speed N 0 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 55°F (13°C)
Visibility 9.00 mi
Last update 20 Mar 04:15 AM PDT
Extended Forecast for

5 Miles ESE Fremont CA

Heat Advisory March 20, 04:41am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 20, 04:41am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. Northwest wind around 6 mph becoming south in the evening.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 78. South southwest wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. West southwest wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 77. West southwest wind 6 to 10 mph becoming northwest in the morning.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 88. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Tonight
Mostly clear, with a low around 62. Northwest wind around 6 mph becoming south in the evening.
Saturday
Mostly sunny, with a high near 78. South southwest wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Mostly clear, with a low around 55. West southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 77. West southwest wind 6 to 10 mph becoming northwest in the morning.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Clear, with a low around 55.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Fremont CA
 37.51°N 121.91°W (Elev. 390 ft)
Last Update:
2:22 am PDT Mar 20, 2026
Forecast Valid:
4am PDT Mar 20, 2026-6pm PDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation