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

LA HONDA (LAHC1)

Lat: 37.30523°NLon: 122.25525°WElev: 804.0ft.

NA

54°F

12°C

Humidity 98%
Wind Speed N 1 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 18 Aug 12:07 AM PDT
Extended Forecast for

3 Miles S Portola Valley CA

  • Overnight

    Overnight: Partly cloudy, with a low around 61. Light west southwest wind.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 80. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 80 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64. West wind around 5 mph becoming light and variable  in the evening.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64. West northwest wind around 6 mph.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Friday Night

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

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 61. Light west southwest wind.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 80. Calm wind becoming northwest around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 64. West wind around 5 mph becoming light and variable in the evening.
Wednesday
Mostly sunny, with a high near 77. Calm wind becoming west northwest around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 64. West northwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
Mostly cloudy, with a low around 64.
Friday
Mostly sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 58.
Monday
Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Portola Valley CA
 37.33°N 122.21°W (Elev. 2231 ft)
12:46 am PDT Aug 18, 2026
1am PDT Aug 18, 2026-6pm PDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database