Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Hazardous Weather Conditions

Air Stagnation Advisory until December 31, 04:00 PM PST

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

27°F

-3°C

Humidity	98%
Wind Speed	NE 0 MPH
Barometer	NA
Dewpoint	27°F (-3°C)
Visibility	NA
Last update	29 Dec 11:52 PM PST

More Information:

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

Extended Forecast for

3 Miles SE Illinois Valley OR

Air Stagnation Advisory December 30, 01:00am until December 31, 04:00pm

Click here for hazard details and duration

Air Stagnation Advisory

Air Stagnation Advisory December 30, 01:00am until December 31, 04:00pm
NOW until 4:00pm Wed
Air Stagnation Advisory
Overnight
Low: 32 °F
Freezing Fog
Tuesday
High: 48 °F
Freezing Fog
then Sunny
Tuesday Night
Low: 34 °F
Dense
Freezing Fog
and Dense Fog
Wednesday
High: 47 °F
Freezing Fog
and Fog then
Chance Rain
Wednesday Night
Low: 39 °F
Rain Likely
New Year's Day
High: 50 °F
Rain
Thursday Night
Low: 40 °F
Rain
Friday
High: 49 °F
Rain

Detailed Forecast

Overnight

Widespread freezing fog. Mostly clear, with a low around 32. Calm wind.

Tuesday

Widespread freezing fog before 11am. Sunny, with a high near 48. Calm wind.

Tuesday Night

Widespread dense fog after 10pm. Widespread dense freezing fog after 10pm. Otherwise, partly cloudy, with a low around 34. Calm wind.

Wednesday

A 30 percent chance of rain after 4pm. Widespread fog before 11am. Widespread freezing fog before 10am. Otherwise, mostly cloudy, with a high near 47. Calm wind.

Wednesday Night

Rain likely, mainly after 10pm. Mostly cloudy, with a low around 39. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

New Year's Day

Rain. High near 50. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

Rain. Low around 40. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Rain. Mostly cloudy, with a high near 49.

Friday Night

Rain. Mostly cloudy, with a low around 36.

Saturday

Rain. Snow level 4600 feet. Mostly cloudy, with a high near 46.

Saturday Night

Rain likely. Snow level 4300 feet. Mostly cloudy, with a low around 35.