Weather archive in Helena (airport)

To receive explanations, hover over the appropriate heading

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 7, Friday	21	27.8 82	661.6 26.05 882.06 882.06	761.6 29.98 1015.38 1015.38	-0.3 -0.01 -0.4 -0.4	21	Wind blowing from the south-southeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			no clouds no clouds no clouds	Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes.										8.0 5.0	3.3 38
	18	32.2 90	661.9 26.06 882.46 882.46	761.8 29.99 1015.65 1015.65	-0.9 -0.04 -1.2 -1.2	13	Wind blowing from the east-northeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes.			12.2 54	32.8 91			600-1000 1968-3281			8.0 5.0	0.6 33
	15	31.1 88	662.8 26.09 883.66 883.66	762.7 30.03 1016.85 1016.85	-1.3 -0.05 -1.73 -1.73	17	Wind blowing from the north-northeast	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes.							1000-1500 3281-4921			8.0 5.0	3.3 38
	12	23.3 74	664.1 26.15 885.39 885.39	764.5 30.1 1019.25 1019.25	-0.7 -0.03 -0.93 -0.93	36		Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			no clouds no clouds no clouds	Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes.			12.2 54	23.9 75						11.0 6.8	7.2 45
	09	15.6 60	664.8 26.17 886.33 886.33	765.4 30.13 1020.45 1020.45	0.7 0.03 0.93 0.93	52	Wind blowing from the north-east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			no clouds no clouds no clouds	Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes.										9.0 5.6	5.6 42
	06	13.3 56	664.1 26.15 885.39 885.39	764.6 30.1 1019.38 1019.38		53	Calm, no wind	Calm			no clouds no clouds no clouds				12.2 54	31.7 89						11.0 6.8	3.9 39
	00	21.1 70	663.4 26.12 884.46 884.46	763.5 30.06 1017.92 1017.92	1.3 0.05 1.73 1.73	34	Wind blowing from the west-southwest	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			no clouds no clouds no clouds				12.2 54	31.1 88						12.0 7.5	4.4 40
August 6, Thursday	21	27.2 81	662.1 26.07 882.73 882.73	762.5 30.02 1016.58 1016.58	0.5 0.02 0.67 0.67	15	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas	Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes.							600-1000 1968-3281			6.0 3.7	-1.7 29