Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for 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.

50°F

10°C

Humidity	100%
Wind Speed	NW 0 MPH
Barometer	NA
Dewpoint	50°F (10°C)
Visibility	NA
Last update	10 Apr 05:52 AM PDT

More Information:

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

Extended Forecast for

17 Miles WNW Illinois Valley OR

Today
High: 47 °F
Showers
Tonight
Low: 44 °F
Rain
Saturday
High: 44 °F
Rain/Snow
Saturday Night
Low: 40 °F
Rain/Snow
then
Rain/Snow
Likely
Sunday
High: 42 °F
Rain/Snow
Sunday Night
Low: 40 °F
Rain/Snow
Monday
High: 43 °F
Snow Likely
then
Rain/Snow
Likely
Monday Night
Low: 37 °F
Chance
Rain/Snow
Tuesday
High: 47 °F
Partly Sunny

Detailed Forecast

Today

Rain and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. Snow level 7200 feet lowering to 6400 feet in the afternoon . High near 47. Calm wind becoming southwest 5 to 9 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Rain and possibly a thunderstorm. Snow level 6100 feet lowering to 5600 feet after midnight . Steady temperature around 44. South wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Saturday

Rain, possibly mixed with snow showers before 2pm, then rain between 2pm and 5pm, then rain, possibly mixed with snow showers after 5pm. Some thunder is also possible. Snow level 5500 feet lowering to 4600 feet in the afternoon . High near 44. South southwest wind 7 to 9 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Saturday Night

Rain, possibly mixed with snow before 8pm, then rain between 8pm and 11pm, then rain likely, possibly mixed with snow after 11pm. Snow level 4900 feet. Low around 40. South southwest wind 7 to 9 mph becoming west northwest in the evening. Chance of precipitation is 90%. Little or no snow accumulation expected.

Sunday

Rain and snow, becoming all rain after 2pm. Snow level 4700 feet. High near 42. West southwest wind 7 to 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Sunday Night

Rain and snow before 11pm, then snow likely between 11pm and 2am, then rain likely, possibly mixed with snow after 2am. Snow level 4900 feet lowering to 4300 feet. Low around 40. Chance of precipitation is 80%. Little or no snow accumulation expected.

Monday

Snow likely before 2pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a high near 43. Chance of precipitation is 70%. Little or no snow accumulation expected.

Monday Night

A chance of rain before 11pm, then a slight chance of rain and snow between 11pm and 2am, then a slight chance of rain after 2am. Mostly cloudy, with a low around 37.

Tuesday

Partly sunny, with a high near 47.

Tuesday Night

A chance of rain, mainly after 11pm. Snow level 4400 feet. Mostly cloudy, with a low around 39.

Wednesday

A chance of rain. Snow level 4400 feet rising to 5200 feet in the afternoon. Partly sunny, with a high near 45.

Wednesday Night

A chance of rain. Snow level 5200 feet lowering to 4300 feet after midnight . Mostly cloudy, with a low around 38.

Thursday

A slight chance of rain. Sunny, with a high near 52.