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Boundary Lake, WA Weather Forecast

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Boundary Lake, WA Weather Forecast

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Boundary Lake WA weather - Clear - 61°F
Clear
61°F
Updated 7:01 pm
Feels Like 47°F
Humidity 37%
Wind N 0 mph
Barometer  30.08 in
Dew Point 35°F
Boundary Lake WA weather - Clear - 16°C
Clear
16°C
Updated 7:01 pm
Feels Like 8°C
Humidity 37%
Wind N 0 km/h
Barometer  101.8 kPa
Dew Point 2°C
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Boundary Lake Weather Forecast

TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY
Boundary Lake, WA Weather - Tonight Mostly Clear Boundary Lake, WA Weather - Wednesday Sunny Boundary Lake, WA Weather - Wednesday Night Mostly Clear Boundary Lake, WA Weather - Thursday Mostly Sunny Boundary Lake, WA Weather - Thursday Night Partly Cloudy Boundary Lake, WA Weather - Friday Mostly Clear Boundary Lake, WA Weather - Friday Night Mostly Clear Boundary Lake, WA Weather - Saturday Snow Showers Boundary Lake, WA Weather - Saturday Night Snow Showers Boundary Lake, WA Weather - Sunday Snow Showers Boundary Lake, WA Weather - Sunday Night Snow Showers Boundary Lake, WA Weather - Monday Partly Cloudy
Mostly Clear Sunny Mostly Clear Mostly Sunny Partly Cloudy Mostly Clear Mostly Clear Snow Showers Snow Showers Snow Showers Snow Showers Partly Cloudy
Lo: 36°FLo: 2°C Hi: 65°FHi: 18°C
 Lo: 40°FLo: 4°C Lo: 35°FLo: 2°C Hi: 50°FHi: 10°C
Lo: 39°FLo: 4°C		 Hi: 50°FHi: 10°C
Lo: 39°FLo: 4°C		 Hi: 46°FHi: 8°C
 Hi: 46°FHi: 8°C
Lo: 33°FLo: 1°C		 Hi: 46°FHi: 8°C
Lo: 33°FLo: 1°C		 Lo: 35°FLo: 2°C Hi: 50°FHi: 10°C
Lo: 35°FLo: 2°C
POP: 20% POP: 50% POP: 50% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM PDT Tue Oct 20 2026 Boundary Lake, WA Weather - WeatherWorld.com

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Boundary Lake Forecast Discussion

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Issued: 340 PM PDT Tue Oct 20 2026

Key Messages

  • Above normal temperatures and dry conditions through Wednesday
  • Return of showers and isolated thunderstorms to the eastern mountains Thursday, with breezy conditions in the lower elevations Thursday and Friday
  • Moderate confidence (60-70%) in freezing morning temperatures Saturday

Discussion

... Satellite imagery this afternoon shows an upper closed low spinning away off the coast of CA while a band of mid to upper level cloud cover reaches up into central and northeast OR.

Today through...