Helena Airport (HLN) Weather 08/02/2026
This Afternoon
99
Chance Showers
Tonight
60
Chance Showers then Patchy Smoke
Sunday
94
Sunny
Sunday Night
60
Mostly Clear
Monday
93
Sunny
Monday Night
60
Mostly Clear
Tuesday
94
Sunny
Tuesday Night
61
Mostly Clear
Wednesday
95
Sunny
Wednesday Night
60
Mostly Clear
Thursday
96
Hot
Thursday Night
61
Mostly Clear
Friday
97
Hot
Weekly Forecast
This Afternoon
A 40 percent chance of showers and thunderstorms after 3pm. Increasing clouds and hot, with a high near 99. East northeast wind 8 to 13 mph becoming west southwest. Winds could gust as high as 24 mph.
Tonight
A 30 percent chance of showers and thunderstorms before 7pm. Patchy smoke after 1am. Partly cloudy, with a low around 60. Southeast wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 21 mph.
Sunday
Sunny, with a high near 94. Calm wind becoming north northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Sunday Night
Mostly clear, with a low around 60. West wind 6 to 9 mph.
Monday
Sunny, with a high near 93. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 60. West wind 8 to 11 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 94. Calm wind becoming east northeast 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 61. East northeast wind 5 to 7 mph becoming west after midnight. Winds could gust as high as 18 mph.
Wednesday
Sunny, with a high near 95.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny and hot, with a high near 96.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny and hot, with a high near 97.