Cat Lake, MT Weather Forecast

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Cat Lake, MT Weather Forecast

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Cat Lake MT weather  - Clear - 57°F
Clear
57°F
Updated 10:52 am
Feels Like 64°F
Humidity 50%
Wind SE 3 mph
Barometer  29.93 in
Dew Point 39°F
Cat Lake MT weather  - Clear - 14°C
Clear
14°C
Updated 10:52 am
Feels Like 18°C
Humidity 50%
Wind SE 5 km/h
Barometer  101.3 kPa
Dew Point 4°C

Cat Lake Weather Forecast

TODAY TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT
Cat Lake, MT Weather - Today Clearing Cat Lake, MT Weather - Tonight Chance Of Showers Cat Lake, MT Weather - Wednesday Chance Of T-Storm Cat Lake, MT Weather - Wednesday Night Chance Of T-Storm Cat Lake, MT Weather - Thursday Chance Of T-Storm Cat Lake, MT Weather - Thursday Night Chance Of Showers Cat Lake, MT Weather - Friday Chance Of Showers Cat Lake, MT Weather - Friday Night Chance Of Rain Cat Lake, MT Weather - Saturday Chance Of Rain Cat Lake, MT Weather - Saturday Night Chance Of Rain Cat Lake, MT Weather - Sunday Chance Of Rain Cat Lake, MT Weather - Sunday Night Rain
Clearing Chance of Showers Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of Showers Chance of Showers Chance of Rain Chance of Rain Chance of Rain Chance of Rain Rain
Hi: 76°FHi: 24°C
Lo: 50°FLo: 10°C Hi: 66°FHi: 19°C
Lo: 45°FLo: 7°C Hi: 56°FHi: 13°C
Lo: 36°FLo: 2°C Hi: 60°FHi: 16°C
Lo: 40°FLo: 4°C Hi: 66°FHi: 19°C
Lo: 45°FLo: 7°C Hi: 66°FHi: 19°C
Lo: 46°FLo: 8°C
POP: 20% POP: 90% POP: 70% POP: 80% POP: 40% POP: 20% POP: 40% POP: 20% POP: 40% POP: 20% POP: 60%
POP = Probability of Precipitation.
Weather Outlook Updated: 206 AM MDT Tue Sep 01 2026 Cat Lake, MT Weather - WeatherWorld.com

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Cat Lake Forecast Discussion

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Issued: 1243 AM MDT Tue Sep 1 2026

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KEY MESSAGES:
  • Widespread showers and thunderstorms this afternoon and evening, with gusty outflow winds of 30-50 mph, brief moderate rainfall, and lightning, strongest storms south of Highway 200.
  • Another round of storms Wednesday capable of 30-50 mph outflows and heavy rain rates up to 0.5 inches per hour.
  • Persistent active pattern late week into the weekend under southwesterly flow, with a 15% chance of a tropical moisture tap on Sunday or Monday.

Today & Tonight: High pressure rid...