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 August 16, Sunday	15	26.1 79	665.2 26.19 886.86 886.86	766.1 30.16 1021.38 1021.38	-1.7 -0.07 -2.27 -2.27	36	Wind blowing from the east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			no clouds no clouds no clouds											16.0 9.9	10.0 50
	12	21.1 70	666.9 26.26 889.13 889.13	768.1 30.24 1024.05 1024.05	-0.9 -0.04 -1.2 -1.2	55	Wind blowing from the north-east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			no clouds no clouds no clouds				11.1 52	21.7 71						16.0 9.9	11.7 53
	09	15.0 59	667.8 26.29 890.33 890.33	769.5 30.3 1025.92 1025.92	0.9 0.04 1.2 1.2	75	Wind blowing from the north-northeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			no clouds no clouds no clouds											16.0 9.9	10.6 51
	06	11.1 52	666.9 26.26 889.13 889.13	768.7 30.26 1024.85 1024.85	0.5 0.02 0.67 0.67	89	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				11.1 52	23.9 75						16.0 9.9	9.4 49
	03	14.4 58	666.4 26.24 888.46 888.46	767.7 30.22 1023.52 1023.52	0.3 0.01 0.4 0.4	78	Wind blowing from the south	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			no clouds no clouds no clouds											16.0 9.9	10.6 51
	00	16.7 62	666.1 26.22 888.06 888.06	767.6 30.22 1023.38 1023.38	0.4 0.02 0.53 0.53	75	Calm, no wind	Calm			50%. 5/10. 4 oktas				13.9 57	20.6 69			1500-2000 4921-6562			16.0 9.9	12.2 54	5.0 0.2	6
August 15, Saturday	21	17.8 64	665.7 26.21 887.53 887.53	767.2 30.2 1022.85 1022.85	-0.2 -0.01 -0.27 -0.27	75	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	13.3 56	5.0 0.2	3
	18	20.6 69	665.9 26.22 887.79 887.79	767.5 30.22 1023.25 1023.25	0.9 0.04 1.2 1.2	55	Wind blowing from the west-southwest	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)	11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft		100%. 10/10. 8 oktas				13.9 57	23.9 75			1500-2000 4921-6562			11.0 6.8	11.1 52	0.3 0.01	6
	15	21.7 71	665.0 26.18 886.59 886.59	766.2 30.17 1021.52 1021.52	-1.4 -0.06 -1.87 -1.87	53	Calm, no wind	Calm			no clouds no clouds no clouds											16.0 9.9	11.7 53