Square Lake, MT Weather Forecast

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Square Lake, MT Weather Forecast

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Square Lake MT weather  - Clear - 51°F
Clear
51°F
Updated 6:38 am
Feels Like 42°F
Humidity 42%
Wind VRB 3 mph
Barometer  29.86 in
Dew Point 29°F
Square Lake MT weather  - Clear - 11°C
Clear
11°C
Updated 6:38 am
Feels Like 6°C
Humidity 42%
Wind VRB 5 km/h
Barometer  101.1 kPa
Dew Point -2°C

Square Lake Weather Forecast

TODAY TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT COLUMBUS DAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT
Square Lake, MT Weather - Today Partly Cloudy Square Lake, MT Weather - Tonight Chance Of Rain Square Lake, MT Weather - Saturday Chance Of Rain Square Lake, MT Weather - Saturday Night Chance Of Snow Square Lake, MT Weather - Sunday Chance Of Snow Square Lake, MT Weather - Sunday Night Chance Of Snow Square Lake, MT Weather - Columbus Day Chance Of Snow Square Lake, MT Weather - Monday Night Mostly Clear Square Lake, MT Weather - Tuesday Mostly Sunny Square Lake, MT Weather - Tuesday Night Chance Of Rain Square Lake, MT Weather - Wednesday Chance Of Rain Square Lake, MT Weather - Wednesday Night Chance Of Rain
Partly Cloudy Chance of Rain Chance of Rain Chance of Snow Chance of Snow Chance of Snow Chance of Snow Mostly Clear Mostly Sunny Chance of Rain Chance of Rain Chance of Rain
Hi: 66°FHi: 19°C
Lo: 36°FLo: 2°C Hi: 50°FHi: 10°C
Lo: 30°FLo: -1°C Hi: 40°FHi: 4°C
Lo: 26°FLo: -3°C Hi: 50°FHi: 10°C
Lo: 26°FLo: -3°C Hi: 55°FHi: 13°C
Lo: 35°FLo: 2°C Hi: 55°FHi: 13°C
Lo: 35°FLo: 2°C
POP: 50% POP: 50% POP: 100% POP: 50% POP: 30% POP: 20% POP: 20% POP: 40% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 327 AM MDT Fri Oct 09 2026 Square Lake, MT Weather - WeatherWorld.com

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Issued: 349 AM MDT Fri Oct 9 2026

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KEY MESSAGES:
  • Gusty west winds Friday afternoon will create critical fire weather conditions across southwest Montana, choppy conditions at area lakes, and hazardous crosswinds for high- profile vehicles on I-90 from Deer Lodge to Butte, and I-15 south of Butte.
  • Strong northeast winds will develop Saturday, causing choppy waves that could pose a danger to docks and boats on the southwestern portion of Flathead Lake. Isolated power outages are possible across northwest Montana throug...