Weather forecast for 10 daysHarper, OR

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 72°F
  • 36°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphNNE 28°
  • Humidity: 42%
  • UV index: 3
  • Sunrise: 8:09 am MDT
  • Sunset: 7:01 pm MDT
  • ▼
On Sunday, in Harper, a bright and mostly cloud-free sky is in store.
Temperature values will vary noticeably, extending from an agreeable 71.6°F to a wintry 35.6°F.
It will feel warmer than usual, as the temperature reflects September's normal high of 78.4°F, not October's.
Sunrise will be at 8:09 am and sunset at 7:01 pm; tomorrow's daylight will last for 10h and 53min.

10-day overview

Daily temperatures

Warmest period: tomorrow - Tuesday 72°C.
Coldest day: Saturday 24.10. 55°C.

Chance of precipitation

Highest chance: Thursday 37%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphW 275°
  • Humidity: 48%
  • UV index: 0
  • Sunrise: 8:07 am MDT
  • Sunset: 7:03 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 72°F
  • 36°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphNNE 28°
  • Humidity: 42%
  • UV index: 3
  • Sunrise: 8:09 am MDT
  • Sunset: 7:01 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphN 11°
  • Humidity: 41%
  • UV index: 3
  • Sunrise: 8:10 am MDT
  • Sunset: 7:00 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphN 359°
  • Humidity: 41%
  • UV index: 3
  • Sunrise: 8:11 am MDT
  • Sunset: 6:58 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 6mphN 8°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 8:12 am MDT
  • Sunset: 6:57 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 64°F
  • 43°F
AM Showers
AM Showers
  • Precip. probability: 37%
  • Precipitation: 0.08"
  • Wind: 6mphNW 319°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 8:14 am MDT
  • Sunset: 6:55 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 57°F
  • 32°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 12mphWNW 303°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 8:15 am MDT
  • Sunset: 6:54 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 55°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 7mphN 352°
  • Humidity: 58%
  • UV index: 3
  • Sunrise: 8:16 am MDT
  • Sunset: 6:52 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 57°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphNW 325°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 8:17 am MDT
  • Sunset: 6:50 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 57°F
  • 34°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphWNW 297°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 8:19 am MDT
  • Sunset: 6:49 pm MDT
  • ▼
For the next ten days, a combination of overcast, dry and sunny and showery weather is predicted.
With a probability of 37%, rainfall is predicted only for Thursday. Forecasted precipitation will be minimal at 0.08".
Temperature fluctuation will be noticeable in the upcoming period. Highs will range from 55.4°F to 71.6°F, while the nightly low temperatures will show also a considerable swing, as temperatures overnight will fluctuate from 32°F up to 44.6°F.
With a maximum temperature of 71.6°F, Sunday through Tuesday will be the warmest days in Harper; the lowest daytime temperature of the period will be reached on next Saturday, peaking at 55.4°F.
Updated: Oct 18, 2026 @ 01:06:08 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, mostly sunny and dry conditions will continue.

Tomorrow, the highest temperature will be 71.6°F, while the lowest temperature will be 35.6°F.
The highest temperature tomorrow will be notably higher than the average maximum of 60.8°F in October. The lowest temperature will be moderately lower than the average low of 43.7°F.

On Sunday, in Harper, sunrise will be at 8:09 am and sunset at 7:01 pm (MDT).

Tomorrow, the daylight will last for 10h and 53min.