0.4in

Rain Today

Rain Last Hour
0in

Recorded at St. Joseph, Rosecrans Memorial Airport Updated 18 mins ago (17 miles away)

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Real-Time Extremes

Hottest 85.9 °F
Mc Campbell, TX
Coldest 19.3 °F
Noatak, Noatak Airport, AK
Windiest 38mph
Salida - Monarch Pass, CO
Wettest (Last Hour) 0.2in
Del Rio, Del Rio International Airport, TX
Most Humid 100%
Metter Municipal Airport, GA
Least Humid 19%
Sandberg, CA
Highest Pressure 1026.1 hPa
Berthoud Pass, CO
Lowest Pressure 995.9 hPa
Shemya, Eareckson AFB, AK

Trending Locations

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Helena Rainfall Forecast

Today 30 Sep
100%
Thu 1 Oct
95%
Fri 2 Oct
60%
Sat 3 Oct
5%
Sun 4 Oct
No Rain
Mon 5 Oct
No Rain
Tue 6 Oct
No Rain

Helena Rainfall Statistics

September Rainfall

St. Joseph, Rosecrans Memorial Airport (16.8 miles)

Total Rainfall 2026
29.1in
Daily Average 2026
0.1in
Wettest Day 18 May, 2026
2.2in
Wet Days 2026
80/273 (29%)
Total Rainfall August
1.4in
Daily Average August
0.04in
Wettest Day 16 August, 2026
0.4in
Wet Days August
10/31 (32%)
Total Rainfall September
5.4in
Daily Average September
0.2in
Wettest Day 16 September, 2026
1.4in
Wet Days September
14/30 (47%)

Climate (2021–2025)

St. Joseph, Rosecrans Memorial Airport (16.8 miles)

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Annual Average 2021–2025
32.5in
Monthly Average 2021–2026
2.7in
Daily Average 2021–2026
0.1in
Wettest Day 7 July, 2022
4.6in

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