Rapid City Regional Airport Rainfall Forecast

Today 23 May
15%
Sun 24 May
15%
Mon 25 May
5%
Tue 26 May
10%
Wed 27 May
30%
Thu 28 May
55%
Fri 29 May
45%

Rapid City Regional Airport Rainfall Statistics

May Rainfall

Rapid City, Rapid City Regional Airport (0 miles)

Total Rainfall 2026
4in
Daily Average 2026
0.03in
Wettest Day 21 May, 2026
1.8in
Wet Days 2026
26/143 (18%)
Total Rainfall April
1.1in
Daily Average April
0.04in
Wettest Day 24 April, 2026
0.2in
Wet Days April
9/30 (30%)
Total Rainfall May
2.3in
Daily Average May
0.1in
Wettest Day 21 May, 2026
1.8in
Wet Days May
6/23 (26%)

Climate (2010–Present)

Rapid City, Rapid City Regional Airport (0 miles)

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

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