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

Portland, Portland-Troutdale Airport (KTTD)

Lat: 45.55111°NLon: 122.40889°WElev: 36.0ft.

Clear

55°F

13°C

Humidity 43%
Wind Speed W 4 MPH
Barometer 30.28 in (1025.4 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 21 Mar 03:15 PM PDT
Extended Forecast for

Gresham OR

  • This Afternoon

    This Afternoon: Sunny, with a high near 54. Northwest wind around 8 mph.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Areas of frost after 3am. Otherwise, mostly clear, with a low around 34. North northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 7am. Otherwise, mostly sunny, with a high near 58. Light north wind becoming north northwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 58 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38. North northwest wind 5 to 11 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 57. Calm wind becoming west around 6 mph in the afternoon.

    High: 57 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers after 11pm. Cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers. High near 55. Breezy. Chance of precipitation is 100%.

    High: 55 °F

    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain, mainly before 11pm. Mostly cloudy, with a low around 43. Breezy.

    Low: 43 °F

    Rain and
    Breezy

  • Wednesday

    Wednesday: Rain. Mostly cloudy, with a high near 55. Breezy.

    High: 55 °F

    Rain and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 54. Northwest wind around 8 mph.
Tonight
Areas of frost after 3am. Otherwise, mostly clear, with a low around 34. North northwest wind 5 to 7 mph becoming calm after midnight.
Sunday
Widespread frost, mainly before 7am. Otherwise, mostly sunny, with a high near 58. Light north wind becoming north northwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 38. North northwest wind 5 to 11 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 57. Calm wind becoming west around 6 mph in the afternoon.
Monday Night
A 40 percent chance of showers after 11pm. Cloudy, with a low around 46.
Tuesday
Showers. High near 55. Breezy. Chance of precipitation is 100%.
Tuesday Night
Rain, mainly before 11pm. Mostly cloudy, with a low around 43. Breezy.
Wednesday
Rain. Mostly cloudy, with a high near 55. Breezy.
Wednesday Night
A chance of rain before 11pm. Snow level 3500 feet lowering to 2000 feet after midnight . Partly cloudy, with a low around 37. Breezy.
Thursday
A slight chance of rain. Snow level 1700 feet rising to 2700 feet in the afternoon. Mostly sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 37.
Friday
Sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gresham OR
 45.51°N 122.45°W (Elev. 299 ft)
Last Update:
2:41 pm PDT Mar 21, 2026
Forecast Valid:
3pm PDT Mar 21, 2026-6pm PDT Mar 27, 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