Helena Airport (HLN) Weather 07/13/2026
Today
100
Hot
Tonight
63
Mostly Clear
Sunday
100
Hot
Sunday Night
65
Decreasing Clouds
Monday
96
Hot
Monday Night
67
Slight Chance T-storms then Slight Chance Showers
Tuesday
90
Mostly Sunny then Chance T-storms
Tuesday Night
63
Showers Likely
Wednesday
87
Chance Showers then Chance T-storms
Wednesday Night
62
Chance T-storms then Slight Chance Showers
Thursday
89
Sunny then Chance T-storms
Thursday Night
62
Chance T-storms then Mostly Clear
Friday
91
Sunny then Slight Chance T-storms
Weekly Forecast
Today
Sunny and hot, with a high near 100. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 25 mph.
Tonight
Mostly clear, with a low around 63. West wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 20 mph.
Sunday
Mostly cloudy through mid morning, then becoming sunny and hot, with a high near 100. Light and variable wind becoming northwest 9 to 14 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Cloudy, then gradually becoming partly cloudy, with a low around 65. Northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.
Monday
Mostly sunny and hot, with a high near 96. Calm wind becoming east northeast around 6 mph in the afternoon.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 67. West northwest wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 20%.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 90. Calm wind becoming north 5 to 8 mph in the afternoon.
Tuesday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 63. North northwest wind 5 to 7 mph becoming calm after midnight.
Wednesday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 87.
Wednesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 62.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 91.