Heart Lake Weather Forecast
- 6
- 18
Increasing Clouds
- 10
- 25
Mostly Sunny
- 20
- 23
Snow
- 13
- 26
Snow
- 18
- 25
Chance Snow
- 23
- 27
Snow Likely
Today 29 Nov Southern Rocky Mountain Front
Mostly sunny. Highs 15 to 21. West Winds up to 5 Mph.
Tonight 29 Nov Southern Rocky Mountain Front
Mostly cloudy in the evening then becoming partly cloudy. Near steady temperature around 7. East Winds up to 5 Mph.
Heart Lake Temperature Statistics
November Temperature
Helena Regional Airport (47.8 miles)
Lowest 25 November, 2025
19.9 °FAverage November
41.7 °FHighest 1 November, 2025
73 °F
Climate (2020–Present)
Helena Regional Airport (47.8 miles)
Average Low 2020–2025
36.3 °FAverage 2020–2025
47.7 °FAverage High 2020–2025
59.5 °F