Lewistown Rainfall Forecast

Today 8 Sep
No Rain
Wed 9 Sep
70%
Thu 10 Sep
70%
Fri 11 Sep
5%
Sat 12 Sep
40%
Sun 13 Sep
35%
Mon 14 Sep
40%

Lewistown Rainfall Statistics

September Rainfall

Keokuk Municipal Airport (32.9 miles)

Total Rainfall 2026
9.5in
Daily Average 2026
0.04in
Wettest Day 1 April, 2026
1.2in
Wet Days 2026
58/251 (23%)
Total Rainfall August
0.8in
Daily Average August
0.04in
Wettest Day 12 August, 2026
0.4in
Wet Days August
8/31 (26%)
Total Rainfall September
–
Daily Average September
–
Wettest Day 8 September, 2026
–
Wet Days September
–

Climate (2021–2025)

Keokuk Municipal Airport (32.9 miles)

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Annual Average 2021–2025
12.9in
Monthly Average 2021–2026
0.9in
Daily Average 2021–2026
0.03in
Wettest Day 18 September, 2022
1.5in

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