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Lake Isabel, MT Weather Forecast

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Lake Isabel, MT Weather Forecast

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Lake Isabel MT weather - Overcast - 31°F
Overcast
31°F
Updated 8:24 am
Feels Like 11°F
Humidity 92%
Wind N 0 mph
Barometer  30.06 in
Dew Point 29°F
Lake Isabel MT weather - Overcast - -1°C
Overcast
-1°C
Updated 8:24 am
Feels Like -12°C
Humidity 92%
Wind N 0 km/h
Barometer  101.8 kPa
Dew Point -2°C
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Lake Isabel Weather Forecast

TODAY TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT
Lake Isabel, MT Weather - Today Patchy Fog Lake Isabel, MT Weather - Tonight Mostly Cloudy Lake Isabel, MT Weather - Sunday Rain And Snow Lake Isabel, MT Weather - Sunday Night Rain And Snow Lake Isabel, MT Weather - Monday Patchy Fog Lake Isabel, MT Weather - Monday Night Partly Cloudy Lake Isabel, MT Weather - Tuesday Mostly Cloudy Lake Isabel, MT Weather - Tuesday Night Partly Cloudy Lake Isabel, MT Weather - Wednesday Partly Cloudy Lake Isabel, MT Weather - Wednesday Night Partly Cloudy Lake Isabel, MT Weather - Thursday Chance Of Snow Lake Isabel, MT Weather - Thursday Night Rain And Snow
Patchy Fog Mostly Cloudy Rain and Snow Rain and Snow Patchy Fog Partly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Chance of Snow Rain and Snow
Hi: 45°FHi: 7°C
 Lo: 30°FLo: -1°C Hi: 40°FHi: 4°C
 Lo: 30°FLo: -1°C Hi: 40°FHi: 4°C
 Lo: 26°FLo: -3°C Hi: 45°FHi: 7°C
 Lo: 30°FLo: -1°C Hi: 45°FHi: 7°C
 Lo: 30°FLo: -1°C Hi: 45°FHi: 7°C
 Lo: 30°FLo: -1°C
POP: 50% POP: 20% POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 1229 AM MDT Sat Oct 31 2026 Lake Isabel, MT Weather - WeatherWorld.com

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Issued: 318 AM 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.
  • Late Week Shift: A return to unsettled pattern and potential for mountain snow by next weekend.

Low pressure continues to spin in place over the Pacific Northwest this morning. This feature brought sporadic showers to the region yesterday and due to the breaks in clouds, some loc...