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

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

52°F

11°C

Humidity	85%
Wind Speed	NNE 8 MPH
Barometer	NA
Dewpoint	48°F (9°C)
Visibility	NA
Last update	11 Apr 05:52 PM PDT

More Information:

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

Extended Forecast for

8 Miles WNW Illinois Valley OR

Tonight
Low: 37 °F
Showers then
Rain/Snow
Sunday
High: 45 °F
Chance
Rain/Snow
then Showers
Sunday Night
Low: 39 °F
Showers
Monday
High: 44 °F
Rain/Snow
Likely then
Showers
Likely
Monday Night
Low: 36 °F
Chance
Showers then
Mostly Cloudy
Tuesday
High: 48 °F
Partly Sunny
Tuesday Night
Low: 39 °F
Rain Likely
Wednesday
High: 42 °F
Rain
Wednesday Night
Low: 30 °F
Rain/Snow
Likely then
Chance Snow

Detailed Forecast

Tonight

Rain showers before 2am, then rain and snow showers. Snow level 5300 feet lowering to 3900 feet after midnight . Low around 37. Southeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 90%. Little or no snow accumulation expected.

Sunday

A chance of rain and snow showers before 11am, then rain showers. Some thunder is also possible. Snow level 3800 feet rising to 4600 feet in the afternoon. High near 45. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Sunday Night

Showers. Snow level 4400 feet. Low around 39. West southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Monday

Rain likely, possibly mixed with snow showers, becoming all rain after 11am. Snow level 4300 feet. Mostly cloudy, with a high near 44. West wind 5 to 7 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Monday Night

A 40 percent chance of showers before 11pm. Snow level 4600 feet lowering to 3800 feet after midnight . Mostly cloudy, with a low around 36. West southwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 20 mph.

Tuesday

Partly sunny, with a high near 48.

Tuesday Night

Rain likely, mainly after 11pm. Snow level 4000 feet. Mostly cloudy, with a low around 39. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday

Rain. Snow level 4700 feet. Cloudy, with a high near 42.

Wednesday Night

Rain likely before 8pm, then rain and snow likely between 8pm and 11pm, then a chance of snow after 11pm. Mostly cloudy, with a low around 30.

Thursday

A slight chance of snow before 11am. Sunny, with a high near 50.

Thursday Night

Mostly clear, with a low around 32.

Friday

Sunny, with a high near 58.

Friday Night

Partly cloudy, with a low around 39.