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Cairn Lake, MT Weather Forecast

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Cairn Lake, MT Weather Forecast

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Cairn Lake MT weather - Clear - 35°F
Clear
35°F
Updated 4:06 am
Feels Like 37°F
Humidity 88%
Wind WNW 9 mph
Barometer  30.01 in
Dew Point 32°F
Cairn Lake MT weather - Clear - 2°C
Clear
2°C
Updated 4:06 am
Feels Like 3°C
Humidity 88%
Wind WNW 14 km/h
Barometer  101.6 kPa
Dew Point 0°C
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Cairn Lake Weather Forecast

TODAY TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT
Cairn Lake, MT Weather - Today Chance Of T-Storm Cairn Lake, MT Weather - Tonight Chance Of T-Storm Cairn Lake, MT Weather - Tuesday Mostly Sunny Cairn Lake, MT Weather - Tuesday Night Mostly Clear Cairn Lake, MT Weather - Wednesday Sunny Cairn Lake, MT Weather - Wednesday Night Mostly Clear Cairn Lake, MT Weather - Thursday Sunny Cairn Lake, MT Weather - Thursday Night Partly Cloudy Cairn Lake, MT Weather - Friday Mostly Sunny Cairn Lake, MT Weather - Friday Night Partly Cloudy Cairn Lake, MT Weather - Saturday Mostly Sunny Cairn Lake, MT Weather - Saturday Night Partly Cloudy
Chance of T-Storm Chance of T-Storm Mostly Sunny Mostly Clear Sunny Mostly Clear Sunny Partly Cloudy Mostly Sunny Partly Cloudy Mostly Sunny Partly Cloudy
Hi: 61°FHi: 16°C
 Lo: 30°FLo: -1°C Hi: 65°FHi: 18°C
 Lo: 31°FLo: -1°C Hi: 65°FHi: 18°C
 Lo: 30°FLo: -1°C Hi: 69°FHi: 21°C
 Lo: 35°FLo: 2°C Hi: 69°FHi: 21°C
 Lo: 35°FLo: 2°C Hi: 65°FHi: 18°C
 Lo: 30°FLo: -1°C
POP: 80% POP: 70%
POP = Probability of Precipitation.
Weather Outlook Updated: 113 AM MDT Mon Sep 28 2026 Cairn Lake, MT Weather - WeatherWorld.com

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Cairn Lake Forecast Discussion

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Issued: 108 AM MDT Mon Sep 28 2026

Key Messages

  • Scattered showers and a few strong thunderstorms are possible overnight across southeast Montana.
  • Good chance of scattered showers and thunderstorms across the Beartooth/Absaroka mountains and SE Montana today.
  • Mild and dry pattern prevails Tuesday into next weekend.

Discussion

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Next 7 days (through next Sunday)...

Split troffing will be over the area today. This will keep isolated to scattered showers, and a few embedded thunderstorms, in the forecast through early evening. Outside o...