Weather archive in Helena (airport)
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| Date / Local time | T | Po | P | Pa | U | DD | Ff | ff10 | ff3 | N | WW | W1 | W2 | Tn | Tx | Cl | Nh | H | Cm | Ch | VV | Td | RRR | tR | E | Tg | E' | sss | |
| 2026 September 2, Wednesday | 00 | 18.9 66 | 658.5 25.93 877.93 877.93 | 758.5 29.86 1011.25 1011.25 | 2.3 0.09 3.07 3.07 | 52 | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | Rain, not freezing, slight. | 10.6 51 | 25.6 78 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 8.9 48 | Trace of precipitation Trace of precipitation | 6 | |||||||||||||
| September 1, Tuesday | 21 | 21.7 71 | 656.2 25.83 874.86 874.86 | 756.3 29.78 1008.32 1008.32 | 0.0 0 0 0 | 34 | Wind blowing from the west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 5.0 41 | ||||||||||||||||||
18 | 27.8 82 | 656.2 25.83 874.86 874.86 | 755.9 29.76 1007.78 1007.78 | -0.9 -0.04 -1.2 -1.2 | 22 | Wind blowing from the south-west | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 8 m/s 29 km/h 18 miles/hour 16 knots 5 Bft | no clouds no clouds no clouds | 10.6 51 | 29.4 85 | 16.0 9.9 | 4.4 40 | ||||||||||||||||
15 | 28.3 83 | 657.1 25.87 876.06 876.06 | 756.8 29.8 1008.98 1008.98 | -2.3 -0.09 -3.07 -3.07 | 23 | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 5.0 41 | ||||||||||||||||||||
12 | 18.9 66 | 659.4 25.96 879.13 879.13 | 760.0 29.92 1013.25 1013.25 | -0.7 -0.03 -0.93 -0.93 | 39 | Calm, no wind | Calm | no clouds no clouds no clouds | 8.9 48 | 18.9 66 | 16.0 9.9 | 4.4 40 | |||||||||||||||||
09 | 12.2 54 | 660.1 25.99 880.06 880.06 | 760.9 29.96 1014.45 1014.45 | 0.5 0.02 0.67 0.67 | 59 | Calm, no wind | Calm | no clouds no clouds no clouds | 16.0 9.9 | 4.4 40 | |||||||||||||||||||
06 | 11.1 52 | 659.6 25.97 879.39 879.39 | 759.7 29.91 1012.85 1012.85 | 0.0 0 0 0 | 59 | Calm, no wind | Calm | no clouds no clouds no clouds | 10.6 51 | 26.1 79 | 16.0 9.9 | 3.3 38 | |||||||||||||||||
03 | 12.2 54 | 659.6 25.97 879.39 879.39 | 760.0 29.92 1013.25 1013.25 | -0.2 -0.01 -0.27 -0.27 | 55 | Wind blowing from the west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 3.3 38 | |||||||||||||||||||
00 | 13.9 57 | 659.8 25.98 879.66 879.66 | 760.3 29.93 1013.65 1013.65 | 0.2 0.01 0.27 0.27 | 49 | Wind blowing from the west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | no clouds no clouds no clouds | 6.7 44 | 26.1 79 | 16.0 9.9 | 3.3 38 | |||||||||||||||||