Great Falls Rainfall Forecast

Today 16 Jul
45%
Thu 17 Jul
15%
Fri 18 Jul
25%
Sat 19 Jul
25%
Sun 20 Jul
25%
Mon 21 Jul
45%
Tue 22 Jul
50%

Great Falls Rainfall Statistics

July Rainfall

Lancaster County-mc Whirter Field (10.6 miles)

Total Rainfall 2025
45in
Daily Average 2025
0.2in
Wettest Day 18 February, 2025
9.2in
Wet Days 2025
52/197 (26%)
Total Rainfall June
0.01in
Daily Average June
0in
Wettest Day 26 June, 2025
0.01in
Wet Days June
1/30 (3%)
Total Rainfall July
1.1in
Daily Average July
0.1in
Wettest Day 9 July, 2025
0.6in
Wet Days July
7/16 (44%)

Climate (2010–Present)

Lancaster County-mc Whirter Field (10.6 miles)

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Annual Average 2020–2024
48in
Monthly Average 2020–2025
4.6in
Daily Average 2020–2025
0.2in
Wettest Day 8 March, 2021
11.6in

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