Helena Airport (HLN) 15 Day Weather Forecast, Helena United States
Current weather conditions and 15 day weather forecast for Helena Airport in Helena, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at HLN
| 13 September 2026 Sun 4.5 ° C ( 40.1°F )  Clear |
Feels Like : 2.7 ° C / 36.9°F Humidity : % 93 Pressure : 1017 mb Wind Speed : 3.6 kmph / 2.2 miles from W 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 6 |
15-day weather forecast for Helena Airport, Helena, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 13 September 2026 Sun | Sunny |
4 ° C | 23 ° C | 11.2 ° C | % 61 | 19.8 km/h | 5% |
| 14 September 2026 Mon | Sunny |
4.7 ° C | 14.7 ° C | 8.8 ° C | % 57 | 24.8 km/h | 17% |
| 15 September 2026 Tue |  Overcast |
4.7 ° C | 17.6 ° C | 10.4 ° C | % 54 | 16.6 km/h | 11% |
| 16 September 2026 Wed | Sunny |
5.2 ° C | 20.8 ° C | 12 ° C | % 60 | 10.4 km/h | 5% |
| 17 September 2026 Thu | Sunny |
8 ° C | 22.9 ° C | 14.7 ° C | % 39 | 12.2 km/h | 1% |
| 18 September 2026 Fri | Sunny |
9.3 ° C | 24.8 ° C | 16.1 ° C | % 33 | 14 km/h | 1% |
| 19 September 2026 Sat | Sunny |
10.1 ° C | 25.9 ° C | 17.3 ° C | % 30 | 10.1 km/h | 0% |
| 20 September 2026 Sun | Sunny |
11.8 ° C | 27.3 ° C | 18.7 ° C | % 25 | 11.5 km/h | 1% |
| 21 September 2026 Mon | Overcast |
12.6 ° C | 20.6 ° C | 16.4 ° C | % 35 | 18 km/h | 18% |
| 22 September 2026 Tue | Sunny |
8.6 ° C | 21 ° C | 14.9 ° C | % 58 | 10.8 km/h | 17% |
| 23 September 2026 Wed | Sunny |
10.2 ° C | 24.6 ° C | 16.3 ° C | % 42 | 14.8 km/h | 3% |
| 24 September 2026 Thu | Sunny |
3.7 ° C | 13.4 ° C | 9.5 ° C | % 42 | 28.4 km/h | 3% |
| 25 September 2026 Fri | Overcast |
2 ° C | 13.9 ° C | 7.4 ° C | % 34 | 17.3 km/h | 5% |
| 26 September 2026 Sat |  Heavy snow |
-2.6 ° C | 5.7 ° C | 1.7 ° C | % 78 | 13.7 km/h | 88% |
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