Nilan Reservoir Rainfall Forecast

Today 20 Apr
No Rain
Tue 21 Apr
5%
Wed 22 Apr
85%
Thu 23 Apr
90%
Fri 24 Apr
45%
Sat 25 Apr
25%
Sun 26 Apr
20%

Nilan Reservoir Rainfall Statistics

April Rainfall

Great Falls, Great Falls International Airport (53.4 miles)

Total Rainfall 2026
3.8in
Daily Average 2026
0.04in
Wettest Day 2 April, 2026
1in
Wet Days 2026
26/110 (24%)
Total Rainfall March
1.4in
Daily Average March
0.05in
Wettest Day 13 March, 2026
0.4in
Wet Days March
10/31 (32%)
Total Rainfall April
1.8in
Daily Average April
0.1in
Wettest Day 2 April, 2026
1in
Wet Days April
8/20 (40%)

Climate (2010–Present)

Great Falls, Great Falls International Airport (53.4 miles)

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Annual Average 2021–2025
13.9in
Monthly Average 2021–2026
1.2in
Daily Average 2021–2026
0.04in
Wettest Day 2 June, 2023
1.4in

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