weather.gov

Home

News

Organization

Search for:  NWSAll NOAA

Point Forecast: 4 Miles WNW Big Sky MT  45.29N 111.41W (Elev. 2413 m)	Last Update: 4:27 pm MDT Sep 21, 2021

[hide menu]

Weather Elements Fire Weather Aviation Weather Temperature (°C) Dewpoint (°C) Wind Chill (°C) 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-m) Grassland Fire Danger Index Ceiling Height Visibility

48-Hour Period Starting: 8pm Tue, Sep 21 20219pm Tue, Sep 21 202110pm Tue, Sep 21 202111pm Tue, Sep 21 202112am Wed, Sep 22 20211am Wed, Sep 22 20212am Wed, Sep 22 20213am Wed, Sep 22 20214am Wed, Sep 22 20215am Wed, Sep 22 20216am Wed, Sep 22 20217am Wed, Sep 22 20218am Wed, Sep 22 20219am Wed, Sep 22 202110am Wed, Sep 22 202111am Wed, Sep 22 202112pm Wed, Sep 22 20211pm Wed, Sep 22 20212pm Wed, Sep 22 20213pm Wed, Sep 22 20214pm Wed, Sep 22 20215pm Wed, Sep 22 20216pm Wed, Sep 22 20217pm Wed, Sep 22 20218pm Wed, Sep 22 20219pm Wed, Sep 22 202110pm Wed, Sep 22 202111pm Wed, Sep 22 202112am Thu, Sep 23 20211am Thu, Sep 23 20212am Thu, Sep 23 20213am Thu, Sep 23 20214am Thu, Sep 23 20215am Thu, Sep 23 20216am Thu, Sep 23 20217am Thu, Sep 23 20218am Thu, Sep 23 20219am Thu, Sep 23 202110am Thu, Sep 23 202111am Thu, Sep 23 202112pm Thu, Sep 23 20211pm Thu, Sep 23 20212pm Thu, Sep 23 20213pm Thu, Sep 23 20214pm Thu, Sep 23 20215pm Thu, Sep 23 20216pm Thu, Sep 23 20217pm Thu, Sep 23 20218pm Thu, Sep 23 20219pm Thu, Sep 23 202110pm Thu, Sep 23 202111pm Thu, Sep 23 202112am Fri, Sep 24 20211am Fri, Sep 24 20212am Fri, Sep 24 20213am Fri, Sep 24 20214am Fri, Sep 24 20215am Fri, Sep 24 20216am Fri, Sep 24 20217am Fri, Sep 24 20218am Fri, Sep 24 20219am Fri, Sep 24 202110am Fri, Sep 24 202111am Fri, Sep 24 202112pm Fri, Sep 24 20211pm Fri, Sep 24 20212pm Fri, Sep 24 20213pm Fri, Sep 24 20214pm Fri, Sep 24 20215pm Fri, Sep 24 20216pm Fri, Sep 24 20217pm Fri, Sep 24 20218pm Fri, Sep 24 20219pm Fri, Sep 24 202110pm Fri, Sep 24 202111pm Fri, Sep 24 202112am Sat, Sep 25 20211am Sat, Sep 25 20212am Sat, Sep 25 20213am Sat, Sep 25 20214am Sat, Sep 25 20215am Sat, Sep 25 20216am Sat, Sep 25 20217am Sat, Sep 25 20218am Sat, Sep 25 20219am Sat, Sep 25 202110am Sat, Sep 25 202111am Sat, Sep 25 202112pm Sat, Sep 25 20211pm Sat, Sep 25 20212pm Sat, Sep 25 20213pm Sat, Sep 25 20214pm Sat, Sep 25 20215pm Sat, Sep 25 20216pm Sat, Sep 25 20217pm Sat, Sep 25 20218pm Sat, Sep 25 20219pm Sat, Sep 25 202110pm Sat, Sep 25 202111pm Sat, Sep 25 202112am Sun, Sep 26 20211am Sun, Sep 26 20212am Sun, Sep 26 20213am Sun, Sep 26 20214am Sun, Sep 26 20215am Sun, Sep 26 20216am Sun, Sep 26 20217am Sun, Sep 26 2021

Date	09/21				09/22
Hour (MDT)	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19
Temperature (°C)	8	7	7	6	5	5	5	4	5	4	4	4	4	6	9	11	13	14	15	15	15	14	14	12
Dewpoint (°C)	-3	-3	-3	-3	-4	-3	-4	-6	-6	-6	-6	-7	-7	-5	-4	-4	-4	-6	-6	-6	-6	-6	-4	-3
Wind Chill (°C)	7	6	4	3	2	2	2	2	2	2	1	1	1	3	7
Surface Wind (mph)	6	6	7	8	8	8	7	7	7	8	9	9	9	8	9	9	11	11	11	13	13	13	9	9
Wind Dir	SSW	S	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	S	S	S	SSW	SSW	SW	WSW	WSW	WSW	SW	SW	SW	SW	SW
Gust
Sky Cover (%)	16	42	32	24	53	44	40	46	40	31	32	28	22	16	13	7	10	12	16	19	10	11	58	58
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	8	8
Relative Humidity (%)	44	49	49	53	50	55	50	48	46	46	46	46	44	45	39	35	30	25	24	24	24	24	29	33
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date					09/23
Hour (MDT)	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19
Temperature (°C)	12	11	10	9	8	7	7	6	5	4	4	4	4	5	6	8	9	9	10	11	11	11	11	10
Dewpoint (°C)	-3	-3	-3	-3	-3	-2	-2	-1	-2	-1	-2	-1	-1	0	0	1	0	-1	-2	-3	-4	-4	-4	-4
Wind Chill (°C)			8	7	6	5	4	4	3	2	2	2	2	3	4	6	7	7	8					8
Surface Wind (mph)	9	8	8	8	7	7	7	6	6	6	6	6	6	6	6	6	9	9	9	10	10	10	9	9
Wind Dir	SW	WSW	WSW	WSW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	WSW	WSW	WSW	W	W	W	WNW	WNW	WNW	WNW	WNW
Gust
Sky Cover (%)	58	81	81	81	63	63	63	39	39	39	28	28	28	32	32	32	41	41	41	29	29	29	32	32
Precipitation Potential (%)	8	8	8	8	10	10	10	10	10	10	3	3	3	3	3	3	2	2	2	2	2	2	0	0
Relative Humidity (%)	35	39	41	44	47	51	55	59	63	66	68	70	71	70	66	60	53	47	42	38	35	34	35	38
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

English 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