Custer State Park Rainfall Forecast

Today 15 Oct
35%
Thu 16 Oct
85%
Fri 17 Oct
15%
Sat 18 Oct
40%
Sun 19 Oct
No Rain
Mon 20 Oct
20%
Tue 21 Oct
20%

Custer State Park Rainfall Statistics

October Rainfall

Custer, Custer County Airport (8.7 miles)

Total Rainfall 2025
15.6in
Daily Average 2025
0.1in
Wettest Day 29 June, 2025
1.3in
Wet Days 2025
93/288 (32%)
Total Rainfall September
0.8in
Daily Average September
0.03in
Wettest Day 11 September, 2025
0.3in
Wet Days September
10/30 (33%)
Total Rainfall October
0.4in
Daily Average October
0.03in
Wettest Day 4 October, 2025
0.3in
Wet Days October
2/15 (13%)

Climate (2010–Present)

Custer, Custer County Airport (8.7 miles)

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Annual Average 2020–2024
17.9in
Monthly Average 2020–2025
1.5in
Daily Average 2020–2025
0.1in
Wettest Day 12 October, 2023
2in

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