Great Falls Weather Forecast
- 43
- 76
Chance Rain Showers
- 33
- 55
Chance Rain Showers
- 32
- 53
Slight Chance Rain/Snow
- 50
- 73
Partly Sunny
- 46
- 72
Chance Rain Showers
- 48
- 75
Mostly Cloudy
Today 3 May Cascade County below 5000ft
Sunny. Highs in the mid 70s. West Winds up to 15 Mph.
Tonight 3 May Cascade County below 5000ft
Partly cloudy in the Evening, then mostly cloudy with a 20 percent chance of rain Showers after midnight. Lows in the lower 40s. Northwest Winds 5 to 15 Mph shifting to the north 10 to 15 Mph after midnight. Gusts up to 40 Mph.
Great Falls Temperature Statistics
May Temperature
Great Falls, Great Falls International Airport (3.7 miles)
Lowest
–Average May
–Highest
–
Climate (2021–Present)
Great Falls, Great Falls International Airport (3.7 miles)
Average Low 2021–2026
34.4 °FAverage 2021–2026
47 °FAverage High 2021–2026
59.1 °F