Bismarck Rainfall Forecast

Today 11 Aug
70%
Wed 12 Aug
55%
Thu 13 Aug
60%
Fri 14 Aug
70%
Sat 15 Aug
15%
Sun 16 Aug
40%
Mon 17 Aug
70%

Bismarck Rainfall Statistics

August Rainfall

Garrett County Airport (25.5 miles)

Total Rainfall 2026
27.5in
Daily Average 2026
0.1in
Wettest Day 27 May, 2026
1.3in
Wet Days 2026
91/223 (41%)
Total Rainfall July
5.7in
Daily Average July
0.2in
Wettest Day 11 July, 2026
1.1in
Wet Days July
11/31 (35%)
Total Rainfall August
1.2in
Daily Average August
0.1in
Wettest Day 9 August, 2026
0.4in
Wet Days August
5/11 (45%)

Climate (2021–2025)

Garrett County Airport (25.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

Annual Average 2021–2025
9.7in
Monthly Average 2021–2026
1.2in
Daily Average 2021–2026
0.04in
Wettest Day 13 May, 2025
1.8in

Get WillyWeather+ to remove ads