Rapid City Rainfall Forecast

Today 15 May
50%
Fri 16 May
45%
Sat 17 May
15%
Sun 18 May
70%
Mon 19 May
90%
Tue 20 May
75%
Wed 21 May
40%

Rapid City Rainfall Statistics

May Rainfall

Ellsworth Air Force Base (8.1 miles)

Total Rainfall 2025
2.3in
Daily Average 2025
0.02in
Wettest Day 28 April, 2025
0.7in
Wet Days 2025
20/135 (15%)
Total Rainfall April
1.9in
Daily Average April
0.1in
Wettest Day 28 April, 2025
0.7in
Wet Days April
9/30 (30%)
Total Rainfall May
0.1in
Daily Average May
0.01in
Wettest Day 1 May, 2025
0.1in
Wet Days May
1/15 (7%)

Climate (2010–Present)

Ellsworth Air Force Base (8.1 miles)

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Annual Average 2020–2024
27.5in
Monthly Average 2020–2025
2.3in
Daily Average 2020–2025
0.1in
Wettest Day 5 October, 2020
5.7in

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