Jackson Lake Rainfall Forecast

Today 22 Jun
30%
Tue 23 Jun
15%
Wed 24 Jun
15%
Thu 25 Jun
45%
Fri 26 Jun
30%
Sat 27 Jun
85%
Sun 28 Jun
60%

Jackson Lake Rainfall Statistics

June Rainfall

Helena Regional Airport (43.5 miles)

Total Rainfall 2026
5.6in
Daily Average 2026
0.03in
Wettest Day 30 May, 2026
1in
Wet Days 2026
40/173 (23%)
Total Rainfall May
1.8in
Daily Average May
0.1in
Wettest Day 30 May, 2026
1in
Wet Days May
10/31 (32%)
Total Rainfall June
0.3in
Daily Average June
0.02in
Wettest Day 1 June, 2026
0.2in
Wet Days June
6/22 (27%)

Climate (2021–2025)

Helena Regional Airport (43.5 miles)

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Annual Average 2021–2025
11.3in
Monthly Average 2021–2026
1in
Daily Average 2021–2026
0.03in
Wettest Day 22 September, 2023
1.3in

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