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	88%
Wind Speed	SW 2 MPH
Barometer	NA
Dewpoint	49°F (9°C)
Visibility	NA
Last update	11 Apr 01:52 PM PDT

More Information:

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

Extended Forecast for

17 Miles WNW Illinois Valley OR

This Afternoon
High: 43 °F
Showers
Tonight
Low: 35 °F
Rain/Snow
Sunday
High: 41 °F
Chance Snow
Showers then
Rain/Snow
Sunday Night
Low: 39 °F
Rain/Snow
Monday
High: 41 °F
Snow Showers
then
Rain/Snow
Monday Night
Low: 36 °F
Chance
Rain/Snow
then Slight
Chance Snow
Showers
Tuesday
High: 44 °F
Slight Chance
Snow Showers
Tuesday Night
Low: 39 °F
Rain
Wednesday
High: 41 °F
Rain

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm. Snow level 5000 feet. High near 43. South wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Rain, possibly mixed with snow showers, becoming all snow after 2am. Snow level 5100 feet lowering to 4300 feet after midnight . Low around 35. East wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 80%. Little or no snow accumulation expected.

Sunday

Snow showers likely before 1pm, then rain and snow showers. High near 41. Light and variable wind becoming west southwest 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Sunday Night

Rain and snow showers, becoming all snow after 2am. Snow level 4400 feet. Low around 39. West southwest wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Monday

Snow showers before 2pm, then snow showers, possibly mixed with rain. High near 41. West wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Monday Night

A chance of rain and snow showers before 8pm, then a chance of snow showers. Mostly cloudy, with a low around 36. Chance of precipitation is 40%. Little or no snow accumulation expected.

Tuesday

A 20 percent chance of snow showers. Partly sunny, with a high near 44.

Tuesday Night

Rain, mainly after 11pm. Mostly cloudy, with a low around 39.

Wednesday

Rain. Snow level 4700 feet. Cloudy, with a high near 41.

Wednesday Night

Rain and snow likely before 11pm, then a chance of snow. Mostly cloudy, with a low around 31.

Thursday

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

Thursday Night

Mostly clear, with a low around 34.