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

62°F

17°C

Humidity	83%
Wind Speed	SSE 11 MPH
Barometer	29.84 in (1010.5 mb)
Dewpoint	57°F (14°C)
Visibility	8.00 mi
Last update	10 Apr 01:53 PM PDT

More Information:

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

Extended Forecast for

7 Miles WSW Saint Helena CA

This Afternoon
High: 63 °F
Showers
Tonight
Low: 52 °F
Rain Likely
Saturday
High: 58 °F
Rain Likely
then Showers
Saturday Night
Low: 46 °F
Showers
Sunday
High: 57 °F
Showers
Sunday Night
Low: 45 °F
Chance Rain
then Partly
Cloudy
Monday
High: 65 °F
Slight Chance
Rain
Monday Night
Low: 44 °F
Mostly Clear
Tuesday
High: 68 °F
Sunny

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. High near 63. Southwest wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Mostly cloudy, with a low around 52. Light southwest wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Rain and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 58. Light south wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Showers and possibly a thunderstorm before 8pm, then rain between 8pm and 11pm, then showers and possibly a thunderstorm after 11pm. Low around 46. South wind 5 to 10 mph, with gusts as high as 26 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 57. Southwest wind 5 to 8 mph, with gusts as high as 18 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. Mostly cloudy, with a low around 45. New precipitation amounts of less than a tenth of an inch possible.

Monday

A 20 percent chance of rain. Mostly sunny, with a high near 65.

Monday Night

Mostly clear, with a low around 44.

Tuesday

Sunny, with a high near 68.

Tuesday Night

Mostly clear, with a low around 44.

Wednesday

Mostly sunny, with a high near 69.