Erratic Lake, MT Weather Forecast
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Erratic Lake Weather Forecast
| REST OF TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | VETERANS DAY | WEDNESDAY NIGHT |
| Mostly Sunny | Partly Cloudy | Clouds | Partly Cloudy | Mostly Sunny | Mostly Cloudy | Partly Sunny | Mostly Cloudy | Clouds | Partly Cloudy | Mostly Sunny | Partly Cloudy |
| Hi: 45°FHi: 7°C | Lo: 21°FLo: -6°C | Hi: 55°FHi: 13°C | Lo: 29°FLo: -2°C | Hi: 55°FHi: 13°C | Lo: 29°FLo: -2°C | Hi: 51°FHi: 11°C | Lo: 29°FLo: -2°C | Hi: 51°FHi: 11°C | Lo: 25°FLo: -4°C | Hi: 55°FHi: 13°C | Lo: 29°FLo: -2°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1150 AM MST Fri Nov 06 2026 

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Issued: 1219 PM MST Fri Nov 6 2026
Key Messages
- Periods of windy conditions over the mountains and foothills in south-central Montana today into Sunday.
- Gusty crosswinds may impact travel along Interstate 90 from Big Timber through Livingston and Highway 191 from Big Timber to Harlowton today into early Saturday morning and Saturday night into Sunday morning.
- Mostly dry with above normal temperatures over the next 7 days.
Discussion
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The rest of today through Thursday..
Upper level ridging will keep conditions warm and dry into nex...
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