Heavy Rain and Flash Flooding Threat in Montana; Severe Thunderstorms in the Middle Missouri Valley

A low pressure system will bring heavy to excessive rainfall and high winds across Montana this afternoon. Heavy rainfall totals may lead to scattered flash flooding concerns. A line of showers and strong to severe thunderstorms will move into the mid Missouri Valley region this afternoon producing severe winds and isolated large hail with stronger storms. Read More >

Current conditions at

LA HONDA (LAHC1)

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

56°F

13°C

Humidity	99%
Wind Speed	NA 0 MPH
Barometer	NA
Dewpoint	56°F (13°C)
Visibility	NA
Last update	18 Sep 08:07 AM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles S Portola Valley CA

Today
High: 66 °F
Chance Rain
Tonight
Low: 55 °F
Slight Chance
Rain then
Partly Cloudy
Thursday
High: 70 °F
Mostly Sunny
Thursday Night
Low: 58 °F
Partly Cloudy
Friday
High: 72 °F
Sunny
Friday Night
Low: 59 °F
Mostly Clear
Saturday
High: 79 °F
Sunny
Saturday Night
Low: 62 °F
Clear
Sunday
High: 83 °F
Sunny

Detailed Forecast

Today

A 40 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 66. Light west wind. New precipitation amounts of less than a tenth of an inch possible.

Tonight

A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 55. Calm wind.

Thursday

Mostly sunny, with a high near 70. Light west wind.

Thursday Night

Partly cloudy, with a low around 58. Calm wind.

Friday

Sunny, with a high near 72. Light southwest wind.

Friday Night

Mostly clear, with a low around 59.

Saturday

Sunny, with a high near 79.