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Heart Lake Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  |  |  | |  |  | | |  |  | |
| Mostly Sunny | Mostly Cloudy | Partly Sunny | Partly Cloudy | Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Sunny | Chance of Rain | Rain and Snow | Snow and Rain |
| Hi: 68°FHi: 20°C | Lo: 47°FLo: 8°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C | Hi: 63°FHi: 17°C Lo: 44°FLo: 7°C | Hi: 63°FHi: 17°C Lo: 44°FLo: 7°C | Hi: 64°FHi: 18°C | Lo: 41°FLo: 5°C | Hi: 47°FHi: 8°C | Lo: 29°FLo: -2°C |
| POP: 20% | POP: 50% | POP: 90% |
POP = Probability of Precipitation.
Weather Outlook Updated: 336 AM MDT Mon Oct 05 2026 
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Issued: 1155 PM MDT Sun Oct 4 2026
Key Messages
- Warm and dry conditions continue through Friday, with today being the hottest day.
- Warm, breezy, and dry conditions today will bring elevated fire weather.
- Confidence is increasing for cooler and wetter weather Saturday through the beginning of next week.
Discussion
...- Meteorological Overview:
Upper-level ridging continues to be the dominating pattern through Friday. This pattern will continue to bring warm and dry weather through the work week. Today will be the warmest day of the wee...