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Johnson Lake, MT Weather Forecast

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Johnson Lake, MT Weather Forecast

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Johnson Lake MT weather - Clear - 50°F
Clear
50°F
Updated 5:05 am
Feels Like 51°F
Humidity 87%
Wind ESE 3 mph
Barometer  29.75 in
Dew Point 46°F
Johnson Lake MT weather - Clear - 10°C
Clear
10°C
Updated 5:05 am
Feels Like 11°C
Humidity 87%
Wind ESE 5 km/h
Barometer  100.7 kPa
Dew Point 8°C
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Johnson Lake Weather Forecast

TODAY TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT
Johnson Lake, MT Weather - Today Mostly Cloudy Johnson Lake, MT Weather - Tonight Chance Of Snow Johnson Lake, MT Weather - Saturday Windy Johnson Lake, MT Weather - Saturday Night Clearing Johnson Lake, MT Weather - Sunday Sunny Johnson Lake, MT Weather - Sunday Night Partly Cloudy Johnson Lake, MT Weather - Monday Partly Sunny Johnson Lake, MT Weather - Monday Night Chance Of Snow Johnson Lake, MT Weather - Tuesday Chance Of Snow Johnson Lake, MT Weather - Tuesday Night Chance Of Rain Johnson Lake, MT Weather - Wednesday Rain And Snow Johnson Lake, MT Weather - Wednesday Night Mostly Cloudy
Mostly Cloudy Chance of Snow Windy Clearing Sunny Partly Cloudy Partly Sunny Chance of Snow Chance of Snow Chance of Rain Rain and Snow Mostly Cloudy
Hi: 71°FHi: 22°C
 Lo: 31°FLo: -1°C Hi: 45°FHi: 7°C
 Lo: 25°FLo: -4°C Hi: 41°FHi: 5°C
 Lo: 25°FLo: -4°C Hi: 41°FHi: 5°C
 Lo: 25°FLo: -4°C Hi: 41°FHi: 5°C
 Lo: 29°FLo: -2°C Hi: 41°FHi: 5°C
 Hi: 40°FHi: 4°C
Lo: 25°FLo: -4°C
POP: 70%
POP = Probability of Precipitation.
Weather Outlook Updated: 351 AM MDT Fri Oct 23 2026 Johnson Lake, MT Weather - WeatherWorld.com

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Issued: 1056 PM MDT Thu Oct 22 2026

Key Messages

  • A cold front will push east through the CWA this afternoon bringing gusty winds and rough conditions to Fort Peck Lake.
  • Precipitation chances are expected over the northwestern half of the CWA this afternoon and evening.
  • Cooler and drier weather expected for the weekend continuing into early next week.

Discussion

...

Today into Saturday: An upper low will begin to merge with a western Canada trough today. This will pull up Pacific moisture through the Desert SW while a surface low devel...