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

KF6YUA Sebastopol (AR323)

Lat: 38.38033°NLon: 122.82367°WElev: 235.3ft.

50°F

10°C

Humidity	99%
Wind Speed	E 2 MPH
Barometer	29.87 in (1011.51 mb)
Dewpoint	50°F (10°C)
Visibility	NA
Last update	12 Apr 09:23 AM PDT

More Information:

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

Extended Forecast for

6 Miles SSW Saint Helena CA

Today
High: 53 °F
Showers
Tonight
Low: 43 °F
Slight Chance
Showers then
Partly Cloudy
Monday
High: 59 °F
Sunny
Monday Night
Low: 44 °F
Mostly Clear
Tuesday
High: 61 °F
Sunny
Tuesday Night
Low: 45 °F
Mostly Clear
Wednesday
High: 63 °F
Mostly Sunny
Wednesday Night
Low: 46 °F
Partly Cloudy
Thursday
High: 63 °F
Sunny

Detailed Forecast

Today

Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms, mainly between 4pm and 5pm. High near 53. Southwest wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A 20 percent chance of showers between 9pm and 11pm. Partly cloudy, with a low around 43. West southwest wind 5 to 8 mph becoming calm in the evening.

Monday

Sunny, with a high near 59. Light and variable wind becoming west 5 to 7 mph in the morning.

Monday Night

Mostly clear, with a low around 44. West wind around 7 mph.

Tuesday

Sunny, with a high near 61. Southwest wind 3 to 7 mph.

Tuesday Night

Mostly clear, with a low around 45.

Wednesday

Mostly sunny, with a high near 63.

Wednesday Night

Partly cloudy, with a low around 46.