Mount Rushmore National Memorial Rainfall Forecast

Today 22 Aug
55%
Sat 23 Aug
20%
Sun 24 Aug
15%
Mon 25 Aug
25%
Tue 26 Aug
15%
Wed 27 Aug
15%
Thu 28 Aug
35%

Mount Rushmore National Memorial Rainfall Statistics

August Rainfall

Custer, Custer County Airport (12.4 miles)

Total Rainfall 2025
13.9in
Daily Average 2025
0.1in
Wettest Day 29 June, 2025
1.3in
Wet Days 2025
76/234 (32%)
Total Rainfall July
2.9in
Daily Average July
0.1in
Wettest Day 23 July, 2025
0.9in
Wet Days July
12/31 (39%)
Total Rainfall August
1.3in
Daily Average August
0.1in
Wettest Day 17 August, 2025
0.6in
Wet Days August
7/22 (32%)

Climate (2010–Present)

Custer, Custer County Airport (12.4 miles)

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Annual Average 2020–2024
17.9in
Monthly Average 2020–2025
1.5in
Daily Average 2020–2025
0.05in
Wettest Day 12 October, 2023
2in

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