Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

39°F

4°C

Humidity	98%
Wind Speed	SSW 2 MPH
Barometer	NA
Dewpoint	38°F (3°C)
Visibility	NA
Last update	27 Jan 08:52 PM PST

More Information:

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

Extended Forecast for

17 Miles NE Happy Camp CA

Tonight
Low: 35 °F
Slight Chance
Rain/Snow and
Breezy then
Chance Snow
Wednesday
High: 44 °F
Slight Chance
Snow then
Slight Chance
Rain/Snow
Wednesday Night
Low: 39 °F
Chance Rain
Thursday
High: 51 °F
Slight Chance
Rain
Thursday Night
Low: 44 °F
Mostly Cloudy
Friday
High: 53 °F
Partly Sunny
Friday Night
Low: 44 °F
Mostly Cloudy
Saturday
High: 56 °F
Partly Sunny
Saturday Night
Low: 43 °F
Slight Chance
Rain

Detailed Forecast

Tonight

A slight chance of rain and snow before 11pm, then a chance of snow after 3am. Snow level 4600 feet. Mostly cloudy, with a low around 35. Breezy, with a south wind 21 to 26 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Wednesday

A slight chance of snow, mixing with rain after noon, then gradually ending. Snow level rising to 5300 feet in the afternoon. Partly sunny, with a high near 44. South wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

Wednesday Night

A 30 percent chance of rain. Snow level 5500 feet. Mostly cloudy, with a low around 39. South wind 13 to 15 mph, with gusts as high as 23 mph.

Thursday

A 20 percent chance of rain. Snow level 5700 feet rising to 6600 feet in the afternoon. Partly sunny, with a high near 51. South wind 9 to 14 mph, with gusts as high as 21 mph.

Thursday Night

Mostly cloudy, with a low around 44. South southeast wind 13 to 16 mph, with gusts as high as 24 mph.

Friday

Partly sunny, with a high near 53.

Friday Night

Mostly cloudy, with a low around 44.

Saturday

Partly sunny, with a high near 56.

Saturday Night

A slight chance of rain after 10pm. Snow level 6500 feet. Mostly cloudy, with a low around 43.

Sunday

A chance of rain. Snow level 5900 feet. Partly sunny, with a high near 51.