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

Areas of Excessive Rainfall, Severe Thunderstorms, and Extreme Heat

Heavy to excessive rainfall is expected through tonight across portions of the central Plains. Areas of intense rainfall amounts could support increasing flooding concerns. Scattered severe thunderstorms are possible across parts of the central/southern Plains today and tonight, with large hail and damaging winds the main threats. Areas of extreme heat will impact parts of the West this week. Read More >

Hazardous Weather Conditions

Current conditions at

DW5434 Heppner (D5434)

Lat: 45.24967°NLon: 119.73117°WElev: 2600.0ft.

NA

88°F

31°C

Humidity 25%
Wind Speed NNW 5 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 48°F (9°C)
Visibility NA
Heat Index85°F (29°C)
Last update 10 Aug 06:45 PM PDT
Extended Forecast for

Heppner OR

Extreme Heat Warning August 10, 07:10pm until August 12, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 10, 07:10pm until August 12, 10:00pm

    NOW until 10:00pm Tue

    Extreme Heat Warning

  • Tonight

    Low: 68 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 97. South wind 5 to 9 mph becoming north in the morning.

    High: 97 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 70. North wind 6 to 9 mph becoming south after midnight.

    Low: 70 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 97. South wind 5 to 10 mph becoming northwest in the morning. Winds could gust as high as 20 mph.

    High: 97 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 68. Northwest wind 9 to 11 mph becoming southwest after midnight. Winds could gust as high as 22 mph.

    Low: 68 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 68. North wind 5 to 7 mph becoming south after midnight.
Monday
Sunny, with a high near 97. South wind 5 to 9 mph becoming north in the morning.
Monday Night
Clear, with a low around 70. North wind 6 to 9 mph becoming south after midnight.
Tuesday
Sunny, with a high near 97. South wind 5 to 10 mph becoming northwest in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Clear, with a low around 68. Northwest wind 9 to 11 mph becoming southwest after midnight. Winds could gust as high as 22 mph.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Clear, with a low around 58.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 57.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Heppner OR
 45.34°N 119.56°W (Elev. 2129 ft)
Last Update:
4:15 pm PDT Aug 10, 2025
Forecast Valid:
7pm PDT Aug 10, 2025-6pm PDT Aug 17, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation