Weather WorldPetrolia Lake, MT Weather Forecast
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Petrolia Lake Weather Forecast
| REST OF TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 | | |  |  | | |  | | | | |
| Hazy | Hazy | Hazy | Partly Cloudy | Sunny | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 89°FHi: 32°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 79°FHi: 26°C | Lo: 50°FLo: 10°C | Hi: 85°FHi: 29°C Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C Lo: 55°FLo: 13°C | Hi: 91°FHi: 33°C Lo: 59°FLo: 15°C | Hi: 91°FHi: 33°C Lo: 59°FLo: 15°C | Hi: 99°FHi: 37°C Lo: 61°FLo: 16°C | Hi: 99°FHi: 37°C Lo: 61°FLo: 16°C |
| POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 121 PM MDT Sun Aug 02 2026 
Petrolia Lake Radar Loop
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