Nilan Reservoir Weather Forecast
- 55
- 79
Chance Rain Showers
- 53
- 66
Rain Showers Likely
- 50
- 72
Rain Showers Likely
- 53
- 77
Mostly Sunny
- 58
- 85
Mostly Sunny
- 58
- 87
Partly Sunny
Today 20 Jul Southern High Plains
Mostly cloudy. Highs 75 to 80. West Winds up to 10 Mph.
Tonight 20 Jul Southern High Plains
Cooler, cloudy. Slight chance of Thunderstorms in the Evening, then slight chance of rain Showers after midnight. Lows 50 to 55. Northwest Winds up to 10 Mph. Chance of precipitation 20 percent.
Nilan Reservoir Temperature Statistics
July Temperature
Great Falls, Great Falls International Airport (53.4 miles)
Lowest 11 July, 2025
42.7 °FAverage July
70 °FHighest 8 July, 2025
97.6 °F
Climate (2020–Present)
Great Falls, Great Falls International Airport (53.4 miles)
Average Low 2020–2025
33.9 °FAverage 2020–2025
46.4 °FAverage High 2020–2025
58.3 °F