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Boulder Reservoir, OR Weather Forecast

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Boulder Reservoir, OR Weather Forecast

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Boulder Reservoir OR weather - Sunny - 78°F
Sunny
78°F
Updated 8:13 pm
Feels Like 58°F
Humidity 11%
Wind SSW 13 mph
Barometer  29.79 in
Dew Point 21°F
Boulder Reservoir OR weather - Sunny - 26°C
Sunny
26°C
Updated 8:13 pm
Feels Like 15°C
Humidity 11%
Wind SSW 21 km/h
Barometer  100.8 kPa
Dew Point -6°C
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Boulder Reservoir Weather Forecast

TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT LABOR DAY
Boulder Reservoir, OR Weather - Tonight Chance Of T-Storm Boulder Reservoir, OR Weather - Wednesday Chance Of T-Storm Boulder Reservoir, OR Weather - Wednesday Night Rain Showers Boulder Reservoir, OR Weather - Thursday Chance Of T-Storm Boulder Reservoir, OR Weather - Thursday Night Chance Of T-Storm Boulder Reservoir, OR Weather - Friday Chance Of T-Storm Boulder Reservoir, OR Weather - Friday Night Chance Of T-Storm Boulder Reservoir, OR Weather - Saturday Mostly Sunny Boulder Reservoir, OR Weather - Saturday Night Increasing Clouds Boulder Reservoir, OR Weather - Sunday Mostly Sunny Boulder Reservoir, OR Weather - Sunday Night Chance Of T-Storm Boulder Reservoir, OR Weather - Labor Day Chance Of Showers
Chance of T-Storm Chance of T-Storm Rain Showers Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Mostly Sunny Increasing Clouds Mostly Sunny Chance of T-Storm Chance of Showers
Lo: 53°FLo: 12°C Hi: 74°FHi: 23°C
 Lo: 49°FLo: 9°C Hi: 67°FHi: 19°C
 Lo: 45°FLo: 7°C Hi: 69°FHi: 21°C
 Lo: 46°FLo: 8°C Hi: 74°FHi: 23°C
 Lo: 49°FLo: 9°C Hi: 78°FHi: 26°C
 Lo: 50°FLo: 10°C Hi: 74°FHi: 23°C
POP: 30% POP: 30% POP: 90% POP: 80% POP: 70% POP: 40% POP: 30% POP: 40% POP: 30%
POP = Probability of Precipitation.
Weather Outlook Updated: 230 PM MDT Tue Sep 01 2026 Boulder Reservoir, OR Weather - WeatherWorld.com

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Issued: 641 PM MDT Tue Sep 1 2026

Key Messages

  • Isolated to scattered thunderstorms tonight through Wednesday morning, mainly across the mountains of central Idaho.
  • Widespread showers and embedded thunderstorms across much of southeast Oregon and west-central Idaho Wednesday night through Thursday with significant rainfall totals possible.
  • Much cooler this week, with highs 10-20 degrees below normal by Thursday with periods of gusty winds.
  • Additional wet and cool weather anticipated late this weekend into early next week.

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