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

Heavy Mountain Snow in the Northwest U.S.; Wintry Mix in the Northeast U.S.

Two more cold fronts will pass through the Northwest U.S. this week with heavy mountain snow continuing across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain across the Northeast U.S. overnight into Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Arroyo Seco (CI114)

Lat: 36.359°NLon: 121.29°WElev: 235.0ft.

NA

N/A

Humidity 82%
Wind Speed NE 4 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 07 Mar 10:00 AM PST
Extended Forecast for

Greenfield CA

Extreme Cold Watch January 9, 01:00am until January 9, 09:00am
Click here for hazard details and duration
Extreme Cold Watch

  • Overnight

    Overnight: Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 58. Northwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 58 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 55. North northwest wind 11 to 18 mph, with gusts as high as 29 mph.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 31. North wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 31 °F

    Mostly Clear
    then Frost

  • Friday

    Friday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 58.

    High: 58 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Patchy frost after 2am. Otherwise, mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear
    then Patchy
    Frost

  • Saturday

    Saturday: Areas of frost before 9am. Otherwise, mostly sunny, with a high near 63.

    High: 63 °F

    Areas Frost
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 44. Calm wind.
Wednesday
Mostly sunny, with a high near 58. Northwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph.
Wednesday Night
Partly cloudy, with a low around 41. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 55. North northwest wind 11 to 18 mph, with gusts as high as 29 mph.
Thursday Night
Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 31. North wind 5 to 10 mph, with gusts as high as 18 mph.
Friday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 58.
Friday Night
Patchy frost after 2am. Otherwise, mostly clear, with a low around 35.
Saturday
Areas of frost before 9am. Otherwise, mostly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Patchy frost before 7am. Otherwise, partly sunny, with a high near 65.
Sunday Night
Patchy frost. Otherwise, partly cloudy, with a low around 37.
Monday
Patchy frost. Otherwise, sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greenfield CA
 36.32°N 121.25°W (Elev. 282 ft)
Last Update:
12:26 am PST Jan 7, 2026
Forecast Valid:
2am PST Jan 7, 2026-6pm PST Jan 13, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation