Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

Mostly Cloudy

54°F

12°C

Humidity	96%
Wind Speed	S 3 MPH
Barometer	29.85 in (1010.84 mb)
Dewpoint	53°F (12°C)
Visibility	10.00 mi
Last update	10 Apr 11:53 PM PDT

More Information:

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

Extended Forecast for

6 Miles SSW Saint Helena CA

Overnight
Low: 52 °F
Chance Rain
Saturday
High: 55 °F
Rain Likely
then Heavy
Rain
Saturday Night
Low: 47 °F
Heavy Rain
Sunday
High: 54 °F
Showers
Sunday Night
Low: 45 °F
Chance Rain
then Mostly
Clear
Monday
High: 60 °F
Mostly Sunny
Monday Night
Low: 46 °F
Mostly Clear
Tuesday
High: 64 °F
Sunny
Tuesday Night
Low: 46 °F
Mostly Clear

Detailed Forecast

Overnight

A 30 percent chance of rain, mainly before 3am. Mostly cloudy, with a low around 52. Southwest wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.

Saturday

Rain likely, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. High near 55. South wind 7 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Rain and possibly a thunderstorm before 2am, then showers and possibly a thunderstorm, mainly after 2am. Some of the storms could produce heavy rainfall. Low around 47. South southwest wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

Sunday

Showers and possibly a thunderstorm. High near 54. Southwest wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

A 30 percent chance of rain before 11pm. Partly cloudy, with a low around 45. West southwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

Monday

Mostly sunny, with a high near 60.

Monday Night

Mostly clear, with a low around 46.

Tuesday

Sunny, with a high near 64.

Tuesday Night

Mostly clear, with a low around 46.

Wednesday

Mostly sunny, with a high near 64.

Wednesday Night

Partly cloudy, with a low around 48.