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

MERLIN (MLFO3)

Lat: 42.49975°NLon: 123.36917°WElev: 1144.0ft.

NA

66°F

19°C

Humidity 29%
Wind Speed NNW 10 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 21 Mar 04:58 PM PDT
Extended Forecast for

Grants Pass OR

  • Tonight

    Tonight: Widespread frost after 2am. Otherwise, partly cloudy, with a low around 36. North northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 36 °F

    Partly Cloudy
    then Frost

  • Sunday

    Sunday: Widespread frost before 11am. Otherwise, mostly sunny, with a high near 66. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 66 °F

    Frost then
    Partly Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 5am. Otherwise, mostly cloudy, with a low around 39. Northwest wind 5 to 7 mph becoming light and variable in the evening.

    Low: 39 °F

    Mostly Cloudy
    then Patchy
    Frost

  • Monday

    Monday: Patchy frost before 8am. Otherwise, partly sunny, with a high near 69. Light and variable wind.

    High: 69 °F

    Patchy Frost
    then Partly
    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 48. West wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: A 50 percent chance of rain. Partly sunny, with a high near 65.

    High: 65 °F

    Chance Rain

  • Tuesday Night

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

    Low: 47 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain. Partly sunny, with a high near 63.

    High: 63 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Widespread frost after 2am. Otherwise, partly cloudy, with a low around 36. North northwest wind 5 to 8 mph becoming calm in the evening.
Sunday
Widespread frost before 11am. Otherwise, mostly sunny, with a high near 66. Calm wind becoming west northwest around 6 mph in the afternoon.
Sunday Night
Patchy frost after 5am. Otherwise, mostly cloudy, with a low around 39. Northwest wind 5 to 7 mph becoming light and variable in the evening.
Monday
Patchy frost before 8am. Otherwise, partly sunny, with a high near 69. Light and variable wind.
Monday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 48. West wind around 5 mph becoming calm in the evening.
Tuesday
A 50 percent chance of rain. Partly sunny, with a high near 65.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Partly sunny, with a high near 63.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Mostly sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 40.
Saturday
Mostly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grants Pass OR
 42.44°N 123.33°W (Elev. 997 ft)
Last Update:
4:40 pm PDT Mar 21, 2026
Forecast Valid:
5pm PDT Mar 21, 2026-6pm PDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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