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Courthouse Lake, MT Weather Forecast

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Courthouse Lake, MT Weather Forecast

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Courthouse Lake MT weather - Clear - 32°F
Clear
32°F
Updated 7:18 am
Feels Like 23°F
Humidity 92%
Wind NW 10 mph
Barometer  30.08 in
Dew Point 30°F
Courthouse Lake MT weather - Clear - 0°C
Clear
0°C
Updated 7:18 am
Feels Like -5°C
Humidity 92%
Wind NW 16 km/h
Barometer  101.8 kPa
Dew Point -1°C
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Courthouse Lake Weather Forecast

TODAY TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT
Courthouse Lake, MT Weather - Today Sunny Courthouse Lake, MT Weather - Tonight Mostly Clear Courthouse Lake, MT Weather - Tuesday Rain Showers Courthouse Lake, MT Weather - Tuesday Night Chance Of Showers Courthouse Lake, MT Weather - Wednesday Mostly Sunny Courthouse Lake, MT Weather - Wednesday Night Mostly Clear Courthouse Lake, MT Weather - Thursday Rain Showers Courthouse Lake, MT Weather - Thursday Night Snow Showers Courthouse Lake, MT Weather - Friday Rain/Snow Showers Courthouse Lake, MT Weather - Friday Night Snow Showers Courthouse Lake, MT Weather - Saturday Snow Showers Courthouse Lake, MT Weather - Saturday Night Partly Cloudy
Sunny Mostly Clear Rain Showers Chance of Showers Mostly Sunny Mostly Clear Rain Showers Snow Showers Rain/Snow Showers Snow Showers Snow Showers Partly Cloudy
Hi: 65°FHi: 18°C
 Lo: 30°FLo: -1°C 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: 31°FLo: -1°C Hi: 49°FHi: 9°C
 Lo: 21°FLo: -6°C Hi: 45°FHi: 7°C
 Lo: 21°FLo: -6°C
POP: 20% POP: 20% POP: 20% POP: 70% POP: 100% POP: 80% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 350 AM MDT Mon Oct 19 2026 Courthouse Lake, MT Weather - WeatherWorld.com

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Courthouse Lake Forecast Discussion

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Issued: 1257 AM MDT Mon Oct 19 2026

Key Messages

  • Seasonably warm and mainly dry conditions through mid-week.
  • A weather system may bring cooler temperatures, windy conditions, and precipitation to the area Friday into Saturday, though confidence remains low regarding impacts.

Discussion

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Today through Sunday...

Westerly flow to mild ridging will dominate through mid week, keeping conditions mostly warm and dry. Today, a tight surface pressure gradient and low level jet across southeast MT ahead of a weak cold front will create breezy...