Hermosa Rainfall Forecast

Today 18 Oct
No Rain
Mon 19 Oct
No Rain
Tue 20 Oct
No Rain
Wed 21 Oct
No Rain
Thu 22 Oct
No Rain
Fri 23 Oct
20%
Sat 24 Oct
45%

Hermosa Rainfall Statistics

October Rainfall

Rapid City, Rapid City Regional Airport (15.5 miles)

Total Rainfall 2026
11.3 in
Daily Average 2026
0.04 in
Wettest Day 21 May, 2026
1.8 in
Wet Days 2026
70/291 (24%)
Total Rainfall September
1.5 in
Daily Average September
0.1 in
Wettest Day 20 September, 2026
0.6 in
Wet Days September
13/30 (43%)
Total Rainfall October
0.1 in
Daily Average October
0.01 in
Wettest Day 13 October, 2026
0.1 in
Wet Days October
4/18 (22%)

Climate (2021–2025)

Rapid City, Rapid City Regional Airport (15.5 miles)

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Annual Average 2021–2025
17.1 in
Monthly Average 2021–2026
1.4 in
Daily Average 2021–2026
0.05 in
Wettest Day 12 October, 2023
2 in

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