Weather WorldErratic Lake, MT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Erratic Lake Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | VETERANS DAY | WEDNESDAY NIGHT | THURSDAY |
 |  | |  |  | | | | | | | |
| Partly Cloudy | Clouds | Partly Cloudy | Mostly Sunny | Mostly Cloudy | Partly Sunny | Mostly Cloudy | Clouds | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny |
| 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 | Hi: 59°FHi: 15°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 350 PM MST Fri Nov 06 2026 
Erratic Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Erratic Lake Weather Map
Erratic Lake Quick Facts
Erratic Lake Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
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
...
The rest of today through Thursday..
Upper level ridging will keep conditions warm and dry into nex...