National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Snow Squalls May Impact the Northeast on Thursday; Dangerously Cold Arctic Air Impact the North-Central US

Snow showers and snow squalls are likely to develop across the Northeast on Thursday. Lake effect snow will persist downwind of the Great Lakes. An arctic blast will bring frigid temperatures, gusty winds and dangerous wind chills to the Northern Plains before expanding to the South and East. A major winter storm will begin impacting the Southern Plains and Lower Mississippi Valley Friday. Read More >

Current conditions at

Fortuna Rohnerville Airport (KFOT)

Lat: 40.55296°NLon: 124.13338°WElev: 377.0ft.

Partly Cloudy

46°F

8°C

Humidity 100%
Wind Speed S 3 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 46°F (8°C)
Visibility 1.25 mi
Last update 21 Jan 09:05 PM PST
Extended Forecast for

4 Miles S Petrolia CA

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 42. Light northeast wind.

    Low: 42 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 55. North northwest wind 5 to 9 mph.

    High: 55 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. North wind 13 to 15 mph, with gusts as high as 23 mph.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 53. Breezy, with a north wind around 17 mph, with gusts as high as 25 mph.

    High: 53 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. Breezy, with a north wind 11 to 16 mph, with gusts as high as 24 mph.

    Low: 39 °F

    Clear and
    Breezy then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57. Northeast wind 6 to 9 mph.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 42. Light northeast wind.
Thursday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 55. North northwest wind 5 to 9 mph.
Thursday Night
Partly cloudy, with a low around 44. North wind 13 to 15 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 53. Breezy, with a north wind around 17 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 39. Breezy, with a north wind 11 to 16 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 57. Northeast wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 54.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
A slight chance of showers. Partly sunny, with a high near 55.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 43.
Wednesday
A chance of rain. Mostly cloudy, with a high near 55.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Petrolia CA
 40.25°N 124.25°W (Elev. 1978 ft)
Last Update:
1:23 pm PST Jan 21, 2026
Forecast Valid:
9pm PST Jan 21, 2026-6pm PST Jan 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation