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Boundary Lake, MT Weather Forecast

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Boundary Lake, MT Weather Forecast

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Boundary Lake MT weather - Clear - 51°F
Clear
51°F
Updated 11:38 pm
Feels Like 49°F
Humidity 63%
Wind SSE 7 mph
Barometer  30.21 in
Dew Point 39°F
Boundary Lake MT weather - Clear - 11°C
Clear
11°C
Updated 11:38 pm
Feels Like 10°C
Humidity 63%
Wind SSE 11 km/h
Barometer  102.3 kPa
Dew Point 4°C
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Boundary Lake Weather Forecast

TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY THURSDAY FRIDAY FRIDAY NIGHT SATURDAY
Boundary Lake, MT Weather - Tonight Clearing Boundary Lake, MT Weather - Sunday Sunny Boundary Lake, MT Weather - Sunday Night Partly Cloudy Boundary Lake, MT Weather - Monday Windy Boundary Lake, MT Weather - Monday Night Partly Cloudy Boundary Lake, MT Weather - Tuesday Sunny Boundary Lake, MT Weather - Tuesday Night Partly Cloudy Boundary Lake, MT Weather - Wednesday Partly Cloudy Boundary Lake, MT Weather - Thursday Partly Cloudy Boundary Lake, MT Weather - Friday Partly Cloudy Boundary Lake, MT Weather - Friday Night Chance Of Rain Boundary Lake, MT Weather - Saturday Rain And Snow
Clearing Sunny Partly Cloudy Windy Partly Cloudy Sunny Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Chance of Rain Rain and Snow
Lo: 39°FLo: 4°C Hi: 71°FHi: 22°C
 Lo: 49°FLo: 9°C Hi: 75°FHi: 24°C
 Lo: 49°FLo: 9°C Hi: 71°FHi: 22°C
 Hi: 69°FHi: 21°C
Lo: 41°FLo: 5°C		 Hi: 69°FHi: 21°C
Lo: 41°FLo: 5°C		 Hi: 69°FHi: 21°C
Lo: 41°FLo: 5°C		 Hi: 69°FHi: 21°C
Lo: 41°FLo: 5°C		 Lo: 39°FLo: 4°C Hi: 50°FHi: 10°C
POP: 20% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 336 PM MDT Sat Oct 03 2026 Boundary Lake, MT Weather - WeatherWorld.com

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Boundary Lake Forecast Discussion

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Issued: 1128 PM MDT Sat Oct 3 2026

Key Messages

  • Unseasonably warm temperatures will continue through at least the middle of next week.
  • There will be the potential for areas of elevated fire weather concerns on Monday due to breezy winds and low relative humidity values.

Discussion

... /Issued 522 PM MDT Sat Oct 3 2026/
  • Meteorological Overview:

    • The upper-level ridge will continue its slow eastward movement, allowing for an extended period of dry and warm conditions for Montana. A weak shortwave on Monday will cause breezy winds in cen...