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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

GREEN MOUNTAIN (CCRO3)

Lat: 43.72528°NLon: 122.80556°WElev: 3047.0ft.

NA

37°F

3°C

Humidity 80%
Wind Speed N 1 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 22 Mar 12:13 AM PDT
Extended Forecast for

4 Miles SW Cottage Grove OR

  • Overnight

    Overnight: Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am. Otherwise, partly sunny, with a high near 57. Calm wind becoming north 5 to 8 mph in the morning.

    High: 57 °F

    Frost then
    Partly Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 2am. Otherwise, mostly cloudy, with a low around 35. North wind around 6 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Cloudy
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, partly sunny, with a high near 61. Light and variable wind.

    High: 61 °F

    Areas Frost
    then Partly
    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers after 11pm. Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Rain. High near 63. Chance of precipitation is 90%.

    High: 63 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 42. Chance of precipitation is 90%.

    Low: 42 °F

    Rain

  • Wednesday

    Wednesday: Rain likely. Mostly cloudy, with a high near 56.

    High: 56 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm. Snow level 3800 feet lowering to 2100 feet after midnight . Partly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain
    then Partly
    Cloudy

Detailed Forecast

Overnight
Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 32. Calm wind.
Sunday
Widespread frost, mainly before 9am. Otherwise, partly sunny, with a high near 57. Calm wind becoming north 5 to 8 mph in the morning.
Sunday Night
Areas of frost after 2am. Otherwise, mostly cloudy, with a low around 35. North wind around 6 mph becoming calm in the evening.
Monday
Areas of frost before 8am. Otherwise, partly sunny, with a high near 61. Light and variable wind.
Monday Night
A 40 percent chance of showers after 11pm. Mostly cloudy, with a low around 44. Calm wind.
Tuesday
Rain. High near 63. Chance of precipitation is 90%.
Tuesday Night
Rain. Low around 42. Chance of precipitation is 90%.
Wednesday
Rain likely. Mostly cloudy, with a high near 56.
Wednesday Night
A chance of rain before 11pm. Snow level 3800 feet lowering to 2100 feet after midnight . Partly cloudy, with a low around 33.
Thursday
Sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 32.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Cottage Grove OR
 43.75°N 123.1°W (Elev. 735 ft)
Last Update:
12:41 am PDT Mar 22, 2026
Forecast Valid:
1am PDT Mar 22, 2026-6pm PDT Mar 28, 2026
 
Forecast Discussion
 
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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