weather.gov

Home

News

Organization

Search for:  NWSAll NOAA

Point Forecast: Helena MT  46.61N 111.96W (Elev. 3796 ft)	Last Update: 10:55 pm MDT May 10, 2021

[hide menu]  |  Font Size: A A A

Weather Elements Fire Weather Aviation Weather Temperature (°F) Dewpoint (°F) Wind Chill (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Snow Freezing Rain Sleet Fog Mixing Height  x100ftx100m Haines Index Trans. Wind  ktmphkm/hm/s Vent Rate (x1000 mph-ft) Grassland Fire Danger Index Ceiling Height Visibility

48-Hour Period Starting: 11pm Mon, May 10 202112am Tue, May 11 20211am Tue, May 11 20212am Tue, May 11 20213am Tue, May 11 20214am Tue, May 11 20215am Tue, May 11 20216am Tue, May 11 20217am Tue, May 11 20218am Tue, May 11 20219am Tue, May 11 202110am Tue, May 11 202111am Tue, May 11 202112pm Tue, May 11 20211pm Tue, May 11 20212pm Tue, May 11 20213pm Tue, May 11 20214pm Tue, May 11 20215pm Tue, May 11 20216pm Tue, May 11 20217pm Tue, May 11 20218pm Tue, May 11 20219pm Tue, May 11 202110pm Tue, May 11 202111pm Tue, May 11 202112am Wed, May 12 20211am Wed, May 12 20212am Wed, May 12 20213am Wed, May 12 20214am Wed, May 12 20215am Wed, May 12 20216am Wed, May 12 20217am Wed, May 12 20218am Wed, May 12 20219am Wed, May 12 202110am Wed, May 12 202111am Wed, May 12 202112pm Wed, May 12 20211pm Wed, May 12 20212pm Wed, May 12 20213pm Wed, May 12 20214pm Wed, May 12 20215pm Wed, May 12 20216pm Wed, May 12 20217pm Wed, May 12 20218pm Wed, May 12 20219pm Wed, May 12 202110pm Wed, May 12 202111pm Wed, May 12 202112am Thu, May 13 20211am Thu, May 13 20212am Thu, May 13 20213am Thu, May 13 20214am Thu, May 13 20215am Thu, May 13 20216am Thu, May 13 20217am Thu, May 13 20218am Thu, May 13 20219am Thu, May 13 202110am Thu, May 13 202111am Thu, May 13 202112pm Thu, May 13 20211pm Thu, May 13 20212pm Thu, May 13 20213pm Thu, May 13 20214pm Thu, May 13 20215pm Thu, May 13 20216pm Thu, May 13 20217pm Thu, May 13 20218pm Thu, May 13 20219pm Thu, May 13 202110pm Thu, May 13 202111pm Thu, May 13 202112am Fri, May 14 20211am Fri, May 14 20212am Fri, May 14 20213am Fri, May 14 20214am Fri, May 14 20215am Fri, May 14 20216am Fri, May 14 20217am Fri, May 14 20218am Fri, May 14 20219am Fri, May 14 202110am Fri, May 14 202111am Fri, May 14 202112pm Fri, May 14 20211pm Fri, May 14 20212pm Fri, May 14 20213pm Fri, May 14 20214pm Fri, May 14 20215pm Fri, May 14 20216pm Fri, May 14 20217pm Fri, May 14 20218pm Fri, May 14 20219pm Fri, May 14 202110pm Fri, May 14 202111pm Fri, May 14 202112am Sat, May 15 20211am Sat, May 15 20212am Sat, May 15 20213am Sat, May 15 20214am Sat, May 15 20215am Sat, May 15 20216am Sat, May 15 20217am Sat, May 15 20218am Sat, May 15 20219am Sat, May 15 202110am Sat, May 15 2021

Date	05/10	05/11
Hour (MDT)	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22
Temperature (°F)	43	42	39	38	37	35	35	34	35	41	47	51	56	58	61	63	64	64	64	63	60	57	52	48
Dewpoint (°F)	30	31	30	30	29	28	29	28	28	31	34	32	33	30	31	31	30	30	31	31	32	34	33	33
Wind Chill (°F)	40	40	37	34	34	32	35	31	35	41	47													45
Surface Wind (mph)	5	3	3	5	3	3	2	3	2	2	2	3	6	7	8	9	9	9	8	8	8	8	6	6
Wind Dir	W	WSW	SW	W	W	W	WSW	SW	S	ESE	ENE	ENE	NE	NE	NNE	N	NNW	NNW	NNW	NNW	NNW	NNW	WNW	WNW
Gust
Sky Cover (%)	38	36	26	14	12	9	11	17	16	16	16	15	20	34	36	43	41	44	48	40	40	40	33	33
Precipitation Potential (%)	7	6	5	4	4	4	5	5	6	7	8	8	13	17	22	23	24	22	20	7	7	7	7	7
Relative Humidity (%)	61	65	69	73	74	76	80	78	76	68	60	48	42	34	32	30	28	28	29	30	35	42	49	56
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date		05/12
Hour (MDT)	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22
Temperature (°F)	46	45	43	41	39	37	35	35	37	41	46	52	57	61	64	66	68	68	68	66	64	61	58	55
Dewpoint (°F)	34	35	35	34	33	31	30	30	31	33	35	37	38	37	36	35	35	35	34	33	34	33	34	33
Wind Chill (°F)	43	42	39	37	37	34	32	32	34	39	46
Surface Wind (mph)	6	6	6	6	3	3	3	3	3	3	2	2	2	6	6	6	8	8	8	9	9	9	8	8
Wind Dir	WNW	W	W	W	W	W	W	W	W	W	E	E	E	NNW	NNW	NNW	N	N	N	SSE	SSE	SSE	S	S
Gust
Sky Cover (%)	33	32	32	32	21	21	21	22	22	22	21	21	21	33	33	33	55	55	55	72	72	72	76	76
Precipitation Potential (%)	7	1	1	1	1	1	1	1	1	1	1	1	1	5	5	5	5	5	5	5	5	5	5	5
Relative Humidity (%)	63	68	72	75	78	80	81	81	78	73	66	57	48	40	35	32	30	29	28	29	32	35	40	43
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

International System of Units Forecast Discussion 7-Day Forecast Hourly Weather Graph Zone Forecast User Defined Area

---

Webmaster NOAA's National Weather Service Great Falls, MT

Disclaimer Credits Glossary

Privacy Policy About Us Career Opportunities