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Sampson Lake, MT Weather Forecast

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Sampson Lake, MT Weather Forecast

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Sampson Lake MT weather - Overcast - 39°F
Overcast
39°F
Updated 4:21 am
Feels Like 23°F
Humidity 85%
Wind NNW 9 mph
Barometer  29.93 in
Dew Point 35°F
Sampson Lake MT weather - Overcast - 4°C
Overcast
4°C
Updated 4:21 am
Feels Like -5°C
Humidity 85%
Wind NNW 14 km/h
Barometer  101.3 kPa
Dew Point 2°C
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Sampson Lake Weather Forecast

TODAY TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT
Sampson Lake, MT Weather - Today Chance Of Rain Sampson Lake, MT Weather - Tonight Patchy Fog Sampson Lake, MT Weather - Monday Patchy Fog Sampson Lake, MT Weather - Monday Night Partly Cloudy Sampson Lake, MT Weather - Tuesday Mostly Cloudy Sampson Lake, MT Weather - Tuesday Night Mostly Cloudy Sampson Lake, MT Weather - Wednesday Partly Cloudy Sampson Lake, MT Weather - Wednesday Night Partly Cloudy Sampson Lake, MT Weather - Thursday Rain And Snow Sampson Lake, MT Weather - Thursday Night Chance Of Rain Sampson Lake, MT Weather - Friday Rain And Snow Sampson Lake, MT Weather - Friday Night Chance Of Rain
Chance of Rain Patchy Fog Patchy Fog Partly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Rain and Snow Chance of Rain Rain and Snow Chance of Rain
Hi: 46°FHi: 8°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 Hi: 50°FHi: 10°C
 Lo: 26°FLo: -3°C Hi: 46°FHi: 8°C
 Lo: 30°FLo: -1°C Hi: 46°FHi: 8°C
 Lo: 30°FLo: -1°C
POP: 20% POP: 30% POP: 20% POP: 40% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 1229 AM MDT Sun Nov 01 2026 Sampson Lake, MT Weather - WeatherWorld.com

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Sampson Lake Forecast Discussion

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Issued: 1229 PM MDT Sat Oct 31 2026

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KEY MESSAGES:
  • Valley rain and mountain snow Sunday into Monday morning, focused along and south of I-90. Northwest Montana stays mostly dry.
  • High pressure bringing stable conditions and valley fog next week.
  • Potential return to unsettled pattern with chances for mountain snow by next weekend (Nov. 7-8).

A broad low pressure system continues to spin along the Pacific Northwest coast this morning, with southerly flow transporting atmospheric moisture and cloud cover across the Northern...