0in

Rain Today

Rain Last Hour
0in

Recorded at Helena Regional Airport Updated 27 mins ago (25.8 miles away)

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Real-Time Extremes

Hottest 123.7 °F
Tanana, Calhoun Memorial Airport, AK
Coldest 24.7 °F
Anaktuvuk Pass, Anaktuvuk Pass Airport, AK
Windiest 40.3mph
Mount Washington, NH
Wettest (Last Hour) 0.3in
Hannibal Regional Airport, MO
Most Humid 100%
North Palm Beach County General Aviation Airport, FL
Least Humid 15%
Winnemucca, Winnemucca Municipal Airport, NV
Highest Pressure 1037.6 hPa
Salida - Monarch Pass, CO
Lowest Pressure 988.1 hPa
Cold Bay, Cold Bay Airport, AK

Trending Locations

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Canyon Ferry Lake Rainfall Forecast

Today 18 Sep
No Rain
Fri 19 Sep
No Rain
Sat 20 Sep
No Rain
Sun 21 Sep
15%
Mon 22 Sep
30%
Tue 23 Sep
No Rain
Wed 24 Sep
5%

Canyon Ferry Lake Rainfall Statistics

September Rainfall

Helena Regional Airport (25.5 miles)

Total Rainfall 2025
11.2in
Daily Average 2025
0.04in
Wettest Day 14 May, 2025
1in
Wet Days 2025
78/261 (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
0.6in
Daily Average September
0.04in
Wettest Day 14 September, 2025
0.4in
Wet Days September
3/18 (17%)

Climate (2010–Present)

Helena Regional Airport (25.5 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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