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Lost Lakes, MT Weather Forecast

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Lost Lakes, MT Weather Forecast

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Lost Lakes MT weather - Mostly Clear - 46°F
Mostly Clear
46°F
Updated 10:24 am
Feels Like 44°F
Humidity 70%
Wind N 0 mph
Barometer  30.13 in
Dew Point 37°F
Lost Lakes MT weather - Mostly Clear - 8°C
Mostly Clear
8°C
Updated 10:24 am
Feels Like 7°C
Humidity 70%
Wind N 0 km/h
Barometer  102 kPa
Dew Point 3°C
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Lost Lakes Weather Forecast

TODAY TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT
Lost Lakes, MT Weather - Today Mostly Sunny Lost Lakes, MT Weather - Tonight Mostly Clear Lost Lakes, MT Weather - Thursday Mostly Sunny Lost Lakes, MT Weather - Thursday Night Chance Of T-Storm Lost Lakes, MT Weather - Friday Snow Lost Lakes, MT Weather - Friday Night Snow Lost Lakes, MT Weather - Saturday Partly Cloudy Lost Lakes, MT Weather - Saturday Night Partly Cloudy Lost Lakes, MT Weather - Sunday Partly Cloudy Lost Lakes, MT Weather - Sunday Night Partly Cloudy Lost Lakes, MT Weather - Monday Chance Of Snow Lost Lakes, MT Weather - Monday Night Rain And Snow
Mostly Sunny Mostly Clear Mostly Sunny Chance of T-Storm Snow Snow Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Chance of Snow Rain and Snow
Hi: 65°FHi: 18°C
 Lo: 36°FLo: 2°C Hi: 65°FHi: 18°C
 Lo: 36°FLo: 2°C Hi: 45°FHi: 7°C
 Lo: 25°FLo: -4°C Hi: 46°FHi: 8°C
 Lo: 25°FLo: -4°C Hi: 46°FHi: 8°C
 Lo: 25°FLo: -4°C Hi: 46°FHi: 8°C
 Lo: 26°FLo: -3°C
POP: 90% POP: 100% POP: 60% POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 1228 AM MDT Wed Oct 21 2026 Lost Lakes, 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...