Powder River Rainfall Forecast

Today 26 Sep
No Rain
Sun 27 Sep
10%
Mon 28 Sep
35%
Tue 29 Sep
50%
Wed 30 Sep
No Rain
Thu 1 Oct
No Rain
Fri 2 Oct
No Rain

Powder River Rainfall Statistics

September Rainfall

Casper, Natrona County International Airport (27.3 miles)

Total Rainfall 2026
7.1in
Daily Average 2026
0.03in
Wettest Day 13 August, 2026
1.3in
Wet Days 2026
50/269 (19%)
Total Rainfall August
2in
Daily Average August
0.1in
Wettest Day 13 August, 2026
1.3in
Wet Days August
6/31 (19%)
Total Rainfall September
0.7in
Daily Average September
0.03in
Wettest Day 13 September, 2026
0.4in
Wet Days September
5/26 (19%)

Climate (2021–2025)

Casper, Natrona County International Airport (27.3 miles)

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Annual Average 2021–2025
13in
Monthly Average 2021–2026
1in
Daily Average 2021–2026
0.03in
Wettest Day 12 October, 2023
1.3in

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