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

11 Miles NNE Happy Camp CA

Tonight
Low: 34 °F
Chance
Rain/Snow
Wednesday
High: 40 °F
Slight Chance
Rain/Snow
Wednesday Night
Low: 35 °F
Chance Rain
Thursday
High: 47 °F
Chance Rain
Thursday Night
Low: 41 °F
Mostly Cloudy
Friday
High: 50 °F
Slight Chance
Rain
Friday Night
Low: 41 °F
Slight Chance
Rain then
Mostly Cloudy
Saturday
High: 53 °F
Partly Sunny
Saturday Night
Low: 40 °F
Slight Chance
Rain

Detailed Forecast

Tonight

A chance of rain and snow, mainly before 4am. Snow level 4600 feet. Mostly cloudy, with a low around 34. South southwest wind 11 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.

Wednesday

A slight chance of rain and snow before 1pm, then a slight chance of rain between 1pm and 2pm. Snow level 4500 feet rising to 5400 feet in the afternoon. Mostly cloudy, with a high near 40. South southwest wind 11 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Wednesday Night

A 40 percent chance of rain. Snow level 5400 feet. Mostly cloudy, with a low around 35. South wind around 11 mph.

Thursday

A 30 percent chance of rain, mainly before 10am. Snow level 5400 feet rising to 6500 feet in the afternoon. Mostly cloudy, with a high near 47. South southwest wind around 10 mph.

Thursday Night

Mostly cloudy, with a low around 41. South southeast wind 10 to 13 mph, with gusts as high as 20 mph.

Friday

A 20 percent chance of rain after 10am. Snow level 5600 feet rising to 6400 feet in the afternoon. Partly sunny, with a high near 50.

Friday Night

A 20 percent chance of rain before 10pm. Snow level 6700 feet. Mostly cloudy, with a low around 41.

Saturday

Partly sunny, with a high near 53.

Saturday Night

A slight chance of rain after 10pm. Snow level 6500 feet. Mostly cloudy, with a low around 40.

Sunday

A chance of rain. Snow level 5800 feet. Partly sunny, with a high near 47.