Rock Island Lakes Rainfall Forecast

Today 14 Sep
25%
Tue 15 Sep
No Rain
Wed 16 Sep
No Rain
Thu 17 Sep
30%
Fri 18 Sep
70%
Sat 19 Sep
35%
Sun 20 Sep
10%

Rock Island Lakes Rainfall Statistics

September Rainfall

Salmon, Lemhi County Airport (15.5 miles)

Total Rainfall 2026
4.8in
Daily Average 2026
0.02in
Wettest Day 28 June, 2026
0.9in
Wet Days 2026
42/257 (16%)
Total Rainfall August
0.8in
Daily Average August
0.03in
Wettest Day 14 August, 2026
0.5in
Wet Days August
4/31 (13%)
Total Rainfall September
0.5in
Daily Average September
0.05in
Wettest Day 5 September, 2026
0.3in
Wet Days September
6/14 (43%)

Climate (2021–2025)

Salmon, Lemhi County Airport (15.5 miles)

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Annual Average 2021–2025
6.6in
Monthly Average 2021–2026
0.5in
Daily Average 2021–2026
0.02in
Wettest Day 28 June, 2026
0.9in

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