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.

42°F

6°C

Humidity	100%
Wind Speed	N 3 MPH
Barometer	NA
Dewpoint	42°F (6°C)
Visibility	NA
Last update	12 Apr 08:52 AM PDT

More Information:

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

Extended Forecast for

9 Miles WNW Illinois Valley OR

Today
High: 44 °F
Chance
Showers then
Showers
Tonight
Low: 39 °F
Rain Likely
Monday
High: 43 °F
Rain Likely
Monday Night
Low: 35 °F
Chance Rain
then Mostly
Cloudy
Tuesday
High: 44 °F
Partly Sunny
Tuesday Night
Low: 39 °F
Rain
Wednesday
High: 41 °F
Rain then
Rain/Snow
Wednesday Night
Low: 30 °F
Rain/Snow
Likely then
Chance Snow
Thursday
High: 47 °F
Slight Chance
Snow then
Sunny

Detailed Forecast

Today

Rain and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of rain and thunderstorms after 5pm. Snow level 4100 feet rising to 4800 feet. High near 44. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Rain likely, mainly before 9pm. Snow level 4600 feet. Mostly cloudy, with a low around 39. West southwest wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

Monday

Rain likely. Snow level 4200 feet rising to 4800 feet in the afternoon. Mostly cloudy, with a high near 43. West southwest wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Monday Night

A 30 percent chance of rain before 11pm. Snow level 4800 feet lowering to 3900 feet after midnight . Mostly cloudy, with a low around 35. West wind 3 to 7 mph. Winds could gust as high as 20 mph.

Tuesday

Partly sunny, with a high near 44. Light west southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

Tuesday Night

Rain, mainly after 11pm. Snow level 4200 feet. Low around 39. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday

Rain before 2pm, then rain, possibly mixed with snow. Snow level 5100 feet lowering to 4500 feet in the afternoon . High near 41. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday Night

Rain and snow likely, becoming all snow after 8pm. Mostly cloudy, with a low around 30.

Thursday

A slight chance of snow before 11am. Sunny, with a high near 47.

Thursday Night

Mostly clear, with a low around 32.

Friday

Sunny, with a high near 56.

Friday Night

Partly cloudy, with a low around 37.

Saturday

Mostly sunny, with a high near 56.