Point Forecast: Lewistown MT  47.07N 109.43W (Elev. 3898 ft)	Last Update: 4:17 pm MDT Mar 14, 2026

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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 Trans. Wind  ktmphkm/hm/s Vent Rate (x1000 mph-ft) Grassland Fire Danger Index Ceiling Height Visibility

48-Hour Period Starting: 4pm Sat, Mar 14 20265pm Sat, Mar 14 20266pm Sat, Mar 14 20267pm Sat, Mar 14 20268pm Sat, Mar 14 20269pm Sat, Mar 14 202610pm Sat, Mar 14 202611pm Sat, Mar 14 202612am Sun, Mar 15 20261am Sun, Mar 15 20262am Sun, Mar 15 20263am Sun, Mar 15 20264am Sun, Mar 15 20265am Sun, Mar 15 20266am Sun, Mar 15 20267am Sun, Mar 15 20268am Sun, Mar 15 20269am Sun, Mar 15 202610am Sun, Mar 15 202611am Sun, Mar 15 202612pm Sun, Mar 15 20261pm Sun, Mar 15 20262pm Sun, Mar 15 20263pm Sun, Mar 15 20264pm Sun, Mar 15 20265pm Sun, Mar 15 20266pm Sun, Mar 15 20267pm Sun, Mar 15 20268pm Sun, Mar 15 20269pm Sun, Mar 15 202610pm Sun, Mar 15 202611pm Sun, Mar 15 202612am Mon, Mar 16 20261am Mon, Mar 16 20262am Mon, Mar 16 20263am Mon, Mar 16 20264am Mon, Mar 16 20265am Mon, Mar 16 20266am Mon, Mar 16 20267am Mon, Mar 16 20268am Mon, Mar 16 20269am Mon, Mar 16 202610am Mon, Mar 16 202611am Mon, Mar 16 202612pm Mon, Mar 16 20261pm Mon, Mar 16 20262pm Mon, Mar 16 20263pm Mon, Mar 16 20264pm Mon, Mar 16 20265pm Mon, Mar 16 20266pm Mon, Mar 16 20267pm Mon, Mar 16 20268pm Mon, Mar 16 20269pm Mon, Mar 16 202610pm Mon, Mar 16 202611pm Mon, Mar 16 202612am Tue, Mar 17 20261am Tue, Mar 17 20262am Tue, Mar 17 20263am Tue, Mar 17 20264am Tue, Mar 17 20265am Tue, Mar 17 20266am Tue, Mar 17 20267am Tue, Mar 17 20268am Tue, Mar 17 20269am Tue, Mar 17 202610am Tue, Mar 17 202611am Tue, Mar 17 202612pm Tue, Mar 17 20261pm Tue, Mar 17 20262pm Tue, Mar 17 20263pm Tue, Mar 17 20264pm Tue, Mar 17 20265pm Tue, Mar 17 20266pm Tue, Mar 17 20267pm Tue, Mar 17 20268pm Tue, Mar 17 20269pm Tue, Mar 17 202610pm Tue, Mar 17 202611pm Tue, Mar 17 202612am Wed, Mar 18 20261am Wed, Mar 18 20262am Wed, Mar 18 20263am Wed, Mar 18 20264am Wed, Mar 18 20265am Wed, Mar 18 20266am Wed, Mar 18 20267am Wed, Mar 18 20268am Wed, Mar 18 20269am Wed, Mar 18 202610am Wed, Mar 18 202611am Wed, Mar 18 202612pm Wed, Mar 18 20261pm Wed, Mar 18 20262pm Wed, Mar 18 20263pm Wed, Mar 18 20264pm Wed, Mar 18 20265pm Wed, Mar 18 20266pm Wed, Mar 18 20267pm Wed, Mar 18 20268pm Wed, Mar 18 20269pm Wed, Mar 18 202610pm Wed, Mar 18 202611pm Wed, Mar 18 202612am Thu, Mar 19 20261am Thu, Mar 19 20262am Thu, Mar 19 20263am Thu, Mar 19 2026

Date	03/14								03/15
Hour (MDT)	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15
Temperature (°F)	21	18	17	14	12	11	10	9	9	7	6	7	5	5	5	3	4	6	10	15	17	19	22	23
Dewpoint (°F)	17	15	13	12	10	9	8	7	7	4	4	4	2	1	3	0	1	2	6	8	9	9	11	12
Wind Chill (°F)	8	4	2	-1	-3	-3	-3	-3	-1	-3	-4	-2	-2	-2	-2	3	4	6	10	15	12	14	16	17
Surface Wind (mph)	15	15	15	14	13	10	9	8	6	6	6	5	3	3	3	2	2	2	2	2	3	3	5	5
Wind Dir	NNW	NNW	NW	NW	NW	NW	NW	NNW	NW	NW	NW	WNW	WNW	W	W	WSW	WSW	WSW	WSW	W	W	W	WNW	WNW
Gust	25	26	26	24	22	21	18
Sky Cover (%)	94	94	90	91	91	87	85	87	86	85	87	85	87	87	88	83	77	53	34	22	13	8	14	14
Precipitation Potential (%)	84	91	82	86	83	78	64	40	33	21	15	8	1	1	11	3	0	0	0	0	0	0	0	0
Relative Humidity (%)	85	88	85	90	92	92	92	92	91	89	92	86	88	85	90	88	86	85	82	74	69	64	62	61
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Lkly	Chc	Chc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date									03/16
Hour (MDT)	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15
Temperature (°F)	23	24	22	18	15	11	10	11	13	14	15	16	17	19	21	23	25	28	31	35	38	41	42	43
Dewpoint (°F)	11	12	11	10	8	4	4	5	6	6	7	8	9	12	14	17	19	22	24	28	30	33	35	36
Wind Chill (°F)	18	20	17	13	9	5	4	5	4	5	6	7	9	11	13	16	18	22	25	30	32	36	37	37
Surface Wind (mph)	3	3	3	3	3	3	3	3	6	6	6	6	6	6	6	6	6	6	6	6	8	8	8	10
Wind Dir	WNW	WNW	WNW	WNW	WNW	S	S	S	S	S	S	SSW	SSW	SSW	SSW	SSW	SSW	SW	SW	SW	WSW	WSW	WSW	W
Gust																								22
Sky Cover (%)	15	8	14	14	14	61	61	61	80	80	80	89	89	89	90	90	90	86	86	86	81	81	81	81
Precipitation Potential (%)	0	0	2	2	2	2	2	2	6	6	6	6	6	6	19	19	19	19	19	19	25	25	25	25
Relative Humidity (%)	59	59	61	71	74	74	77	75	72	70	69	69	71	73	75	76	77	77	76	74	73	74	76	77
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	Chc	Chc	Chc	Chc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	Chc	Chc	Chc	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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