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	SW 0 MPH
Barometer	NA
Dewpoint	27°F (-3°C)
Visibility	NA
Last update	29 Dec 09:52 PM PST

More Information:

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

Extended Forecast for

16 Miles SE Agness OR

Air Stagnation Advisory December 29, 10:56pm until December 31, 04:00pm

Click here for hazard details and duration

Air Stagnation Advisory

Air Stagnation Advisory December 29, 10:56pm until December 31, 04:00pm
NOW until 4:00pm Wed
Air Stagnation Advisory
Tonight
Low: 42 °F
Mostly Clear
Tuesday
High: 54 °F
Sunny
Tuesday Night
Low: 41 °F
Increasing
Clouds
Wednesday
High: 51 °F
Chance Rain
Wednesday Night
Low: 44 °F
Rain Likely
New Year's Day
High: 47 °F
Rain
Thursday Night
Low: 44 °F
Rain
Friday
High: 46 °F
Rain

Detailed Forecast

Tonight

Mostly clear, with a low around 42. East southeast wind around 6 mph.

Tuesday

Sunny, with a high near 54. East wind around 6 mph becoming calm in the afternoon.

Tuesday Night

Increasing clouds, with a low around 41. East southeast wind 3 to 5 mph.

Wednesday

A 30 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 51. South southeast wind around 6 mph.

Wednesday Night

Rain likely, mainly after 10pm. Mostly cloudy, with a low around 44. Light southeast wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

New Year's Day

Rain. High near 47. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

Rain. Low around 44. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Rain. Cloudy, with a high near 46.

Friday Night

Rain. Snow level 5600 feet lowering to 5000 feet after midnight . Cloudy, with a low around 40.

Saturday

Rain. Snow level 4600 feet. Cloudy, with a high near 43.

Saturday Night

Rain, possibly mixed with snow. Snow level 4300 feet. Mostly cloudy, with a low around 40.