Tracking Areas of Fire Weather, Winter Weather, and Severe Weather Thursday

Continuation of gusty winds and low relative humidity will bring additional periods of critical fire weather to the southern Plains Thursday and Friday. Another Pacific storm will continue gusty winds and heavy snow over the western mountains into Thursday. Severe thunderstorms are possible across parts of the middle Mississippi into lower Ohio Valleys Thursday afternoon into early evening. Read More >

Hazardous Weather Conditions

Extreme Cold Warning in effect from February 20, 01:00 AM PST until February 20, 09:00 AM PST

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

Rain

45°F

7°C

Humidity	93%
Wind Speed	E 5 MPH
Barometer	29.75 in (1007.45 mb)
Dewpoint	43°F (6°C)
Visibility	8.00 mi
Wind Chill	42°F (6°C)
Last update	19 Feb 02:55 AM PST

More Information:

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

Extended Forecast for

7 Miles WSW Saint Helena CA

Extreme Cold Warning February 20, 01:00am until February 20, 09:00am

Click here for hazard details and duration

Extreme Cold Warning

Overnight
Low: 41 °F
Rain
Thursday
High: 50 °F
Rain Likely
then Slight
Chance Rain
Thursday Night
Low: 32 °F
Clear then
Frost
Friday
High: 50 °F
Areas Frost
then Partly
Sunny
Friday Night
Low: 38 °F
Partly Cloudy
Saturday
High: 53 °F
Slight Chance
Rain
Saturday Night
Low: 47 °F
Chance Rain
Sunday
High: 57 °F
Rain Likely
Sunday Night
Low: 52 °F
Rain Likely

Detailed Forecast

Overnight

Rain. Steady temperature around 41. East southeast wind around 6 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday

Rain likely before noon, then a slight chance of rain after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 50. West northwest wind 7 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Widespread frost, mainly between midnight and 5am. Otherwise, mostly clear, with a low around 32. West northwest wind 5 to 7 mph becoming calm in the evening.

Friday

Areas of frost before 9am. Otherwise, partly sunny, with a high near 50. Light and variable wind.

Friday Night

Partly cloudy, with a low around 38. Calm wind.

Saturday

A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 53. New precipitation amounts of less than a tenth of an inch possible.

Saturday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 47.

Sunday

Rain likely. Mostly cloudy, with a high near 57.

Sunday Night

Rain likely. Cloudy, with a low around 52.