Grangeville Rainfall Forecast

Today 24 Aug
No Rain
Tue 25 Aug
15%
Wed 26 Aug
10%
Thu 27 Aug
5%
Fri 28 Aug
15%
Sat 29 Aug
30%
Sun 30 Aug
15%

Grangeville Rainfall Statistics

August Rainfall

Grangeville - Idaho County Airport (0.6 miles)

Total Rainfall 2026
10.5in
Daily Average 2026
0.05in
Wettest Day 24 February, 2026
0.9in
Wet Days 2026
50/236 (21%)
Total Rainfall July
0.2in
Daily Average July
0.01in
Wettest Day 14 July, 2026
0.2in
Wet Days July
2/31 (6%)
Total Rainfall August
0.02in
Daily Average August
0in
Wettest Day 22 August, 2026
0.02in
Wet Days August
1/24 (4%)

Climate (2021–2025)

Grangeville - Idaho County Airport (0.6 miles)

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Annual Average 2021–2025
17.4in
Monthly Average 2021–2026
1.6in
Daily Average 2021–2026
0.1in
Wettest Day 5 May, 2023
3.2in

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