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Watchtower Lake, MT Weather Forecast

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Watchtower Lake, MT Weather Forecast

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Watchtower Lake MT weather - Clear - 32°F
Clear
32°F
Updated 3:56 am
Feels Like 43°F
Humidity 92%
Wind S 6 mph
Barometer  30.14 in
Dew Point 30°F
Watchtower Lake MT weather - Clear - 0°C
Clear
0°C
Updated 3:56 am
Feels Like 6°C
Humidity 92%
Wind S 10 km/h
Barometer  102 kPa
Dew Point -1°C
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Watchtower Lake Weather Forecast

TODAY TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT
Watchtower Lake, MT Weather - Today Mostly Sunny Watchtower Lake, MT Weather - Tonight Partly Cloudy Watchtower Lake, MT Weather - Thursday Partly Cloudy Watchtower Lake, MT Weather - Thursday Night Chance Of T-Storm Watchtower Lake, MT Weather - Friday Rain And Snow Watchtower Lake, MT Weather - Friday Night Rain And Snow Watchtower Lake, MT Weather - Saturday Partly Cloudy Watchtower Lake, MT Weather - Saturday Night Partly Cloudy Watchtower Lake, MT Weather - Sunday Partly Cloudy Watchtower Lake, MT Weather - Sunday Night Partly Cloudy Watchtower Lake, MT Weather - Monday Chance Of Snow Watchtower Lake, MT Weather - Monday Night Chance Of Snow
Mostly Sunny Partly Cloudy Partly Cloudy Chance of T-Storm Rain and Snow Rain and Snow Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Chance of Snow Chance of Snow
Hi: 60°FHi: 16°C
 Lo: 36°FLo: 2°C Hi: 60°FHi: 16°C
 Lo: 36°FLo: 2°C Hi: 40°FHi: 4°C
 Lo: 26°FLo: -3°C Hi: 45°FHi: 7°C
 Lo: 26°FLo: -3°C Hi: 46°FHi: 8°C
 Lo: 26°FLo: -3°C Hi: 46°FHi: 8°C
 Lo: 26°FLo: -3°C
POP: 100% POP: 100% POP: 40% POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 1228 AM MDT Wed Oct 21 2026 Watchtower Lake, MT Weather - WeatherWorld.com

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Issued: 327 AM MDT Wed Oct 21 2026

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KEY MESSAGES:
  • Mild daytime temperatures through Thursday.
  • Patchy valley fog around sunrise each morning.
  • Significant weather change coming Thursday night into Friday.

Mild day-time temperatures will continue across the Northern Rockies through Thursday as high pressure remains in control. Stable conditions under the ridge are promoting the development of daily valley inversions and trapped cold air, with patchy dense fog. Afternoon temperatures will run around 10 degrees above normal...