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.

Rain

58°F

14°C

Humidity	93%
Wind Speed	ESE 3 MPH
Barometer	29.86 in (1011.18 mb)
Dewpoint	56°F (13°C)
Visibility	10.00 mi
Last update	10 Apr 10:56 AM PDT

More Information:

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

Extended Forecast for

5 Miles SSW Saint Helena CA

Today
High: 58 °F
Showers
Tonight
Low: 52 °F
Showers then
Chance Rain
Saturday
High: 54 °F⇓
Showers
Saturday Night
Low: 49 °F
Showers
Sunday
High: 53 °F
Showers
Sunday Night
Low: 48 °F
Chance Rain
then Partly
Cloudy
Monday
High: 60 °F
Mostly Sunny
Monday Night
Low: 47 °F
Mostly Clear
Tuesday
High: 64 °F
Sunny

Detailed Forecast

Today

Showers and possibly a thunderstorm. High near 58. South southwest wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 10pm. Low around 52. South southwest wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Rain before 2pm, then showers and possibly a thunderstorm after 2pm. Temperature falling to around 50 by 4pm. South wind 7 to 14 mph, with gusts as high as 30 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 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then rain after 2am. Low around 49. South wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

Sunday

Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 53. South southeast wind 8 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

A 40 percent chance of rain before 11pm. Mostly cloudy, with a low around 48. 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 47.

Tuesday

Sunny, with a high near 64.

Tuesday Night

Mostly clear, with a low around 49.

Wednesday

Sunny, with a high near 67.