Marion, MT Weather Forecast

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Marion, MT Weather Forecast

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Marion MT weather  - Clear - 59°F
Clear
59°F
Updated 11:03 am
Feels Like 57°F
Humidity 66%
Wind SSW 7 mph
Barometer  30.31 in
Dew Point 48°F
Marion MT weather  - Clear - 15°C
Clear
15°C
Updated 11:03 am
Feels Like 14°C
Humidity 66%
Wind SSW 11 km/h
Barometer  102.6 kPa
Dew Point 9°C

Marion Weather Forecast

TODAY TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT
Marion, MT Weather - Today Partly Cloudy Marion, MT Weather - Tonight Partly Cloudy Marion, MT Weather - Thursday Mostly Cloudy Marion, MT Weather - Thursday Night Chance Of Rain Marion, MT Weather - Friday Chance Of T-Storm Marion, MT Weather - Friday Night Mostly Cloudy Marion, MT Weather - Saturday Chance Of Rain Marion, MT Weather - Saturday Night Chance Of Rain Marion, MT Weather - Sunday Chance Of Rain Marion, MT Weather - Sunday Night Chance Of Rain Marion, MT Weather - Monday Chance Of Rain Marion, MT Weather - Monday Night Partly Cloudy
Partly Cloudy Partly Cloudy Mostly Cloudy Chance of Rain Chance of T-Storm Mostly Cloudy Chance of Rain Chance of Rain Chance of Rain Chance of Rain Chance of Rain Partly Cloudy
Hi: 75°FHi: 24°C
Lo: 45°FLo: 7°C Hi: 75°FHi: 24°C
Lo: 45°FLo: 7°C Hi: 66°FHi: 19°C
Lo: 45°FLo: 7°C Hi: 65°FHi: 18°C
Lo: 40°FLo: 4°C Hi: 60°FHi: 16°C
Lo: 36°FLo: 2°C Hi: 65°FHi: 18°C
Lo: 36°FLo: 2°C
POP: 40% POP: 40% POP: 20% POP: 40% POP: 50% POP: 30% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 1222 AM MDT Wed Sep 09 2026 Marion, MT Weather - WeatherWorld.com

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Issued: 423 AM MDT Wed Sep 9 2026

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KEY MESSAGES:
  • Today and Thursday will be the warmest days before the change back to fall-like weather.
  • Choppy lake conditions Thursday due to westerly winds between 15 and 25 mph, and locally higher speeds expected over the Divide.
  • Stiff northeast winds are possible Friday night through Saturday...choppy lakes expected.
  • Cutoff Low brings widespread rain, with snow above 7000 feet Saturday night into Sunday.

The satellite imagery this morning reveals fog that has developed in several ...