Helena Regional Airport Rainfall Forecast

Today 4 Sep
No Rain
Fri 5 Sep
No Rain
Sat 6 Sep
No Rain
Sun 7 Sep
20%
Mon 8 Sep
30%
Tue 9 Sep
45%
Wed 10 Sep
50%

Helena Regional Airport Rainfall Statistics

September Rainfall

Helena Regional Airport (0 miles)

Total Rainfall 2025
10.6in
Daily Average 2025
0.04in
Wettest Day 14 May, 2025
1in
Wet Days 2025
75/247 (30%)
Total Rainfall August
2in
Daily Average August
0.1in
Wettest Day 16 August, 2025
0.9in
Wet Days August
8/31 (26%)
Total Rainfall September
0in
Daily Average September
0in
Wettest Day 1 September, 2025
0in
Wet Days September
–

Climate (2010–Present)

Helena Regional Airport (0 miles)

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Annual Average 2020–2024
10.5in
Monthly Average 2020–2025
0.9in
Daily Average 2020–2025
0.03in
Wettest Day 22 September, 2023
1.3in

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