Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Palo Alto Airport (KPAO)

Lat: 37.46667°NLon: 122.11667°WElev: 7.0ft.

Rain

57°F

14°C

Humidity	87%
Wind Speed	SE 16 MPH
Barometer	29.63 in (1003.39 mb)
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Last update	24 Dec 08:47 PM PST

More Information:

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

Extended Forecast for

3 Miles ESE Palo Alto Airport CA

Flood Watch December 24, 09:22pm until December 26, 10:00pm

Wind Advisory until December 25, 10:00am

Click here for hazard details and duration

Flood Watch

Wind Advisory

Flood Watch December 24, 09:22pm until December 26, 10:00pm
Wind Advisory until December 25, 10:00am
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 52 °F
Showers and
Breezy
Christmas Day
High: 58 °F
Severe
Thunderstorms
and Breezy
Thursday Night
Low: 49 °F
Severe
Thunderstorms
and Breezy
then Showers
Likely
Friday
High: 56 °F
Showers
Friday Night
Low: 44 °F
Showers
Likely then
Chance
Showers
Saturday
High: 54 °F
Slight Chance
Showers then
Mostly Sunny
Saturday Night
Low: 38 °F
Mostly Clear
Sunday
High: 54 °F
Sunny

Detailed Forecast

Tonight

Showers and possibly a thunderstorm. Low around 52. Breezy, with a south southeast wind 20 to 28 mph, with gusts as high as 48 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Christmas Day

Showers and possibly a thunderstorm before 1pm, then showers between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 58. Breezy, with an east wind 15 to 23 mph becoming south southwest in the morning. Winds could gust as high as 43 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers and possibly a thunderstorm before 10pm, then showers likely. Some of the storms could be severe. Low around 49. Breezy, with a south southwest wind 23 to 28 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Showers. High near 56. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

Showers likely, mainly before 10pm. Mostly cloudy, with a low around 44. South southeast wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Saturday

A 20 percent chance of showers before 10am. Mostly sunny, with a high near 54.

Saturday Night

Mostly clear, with a low around 38.

Sunday

Sunny, with a high near 54.

Sunday Night

Mostly clear, with a low around 37.

Monday

Sunny, with a high near 56.

Monday Night

Mostly clear, with a low around 38.