Lewis Rainfall Forecast

Today 18 Apr
No Rain
Sun 19 Apr
No Rain
Mon 20 Apr
No Rain
Tue 21 Apr
70%
Wed 22 Apr
75%
Thu 23 Apr
55%
Fri 24 Apr
15%

Lewis Rainfall Statistics

April Rainfall

Grangeville - Idaho County Airport (49.1 miles)

Total Rainfall 2026
5.9in
Daily Average 2026
0.1in
Wettest Day 24 February, 2026
0.9in
Wet Days 2026
30/108 (28%)
Total Rainfall March
2.2in
Daily Average March
0.1in
Wettest Day 4 March, 2026
0.6in
Wet Days March
11/31 (35%)
Total Rainfall April
1in
Daily Average April
0.1in
Wettest Day 2 April, 2026
0.5in
Wet Days April
6/18 (33%)

Climate (2011–Present)

Grangeville - Idaho County Airport (49.1 miles)

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Annual Average 2021–2025
17.4in
Monthly Average 2021–2026
1.5in
Daily Average 2021–2026
0.1in
Wettest Day 5 May, 2023
3.2in

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