As of 21:00 MDT

Weather in Lewistown, MT

35°

Lewistown, Thursday, 15 October, 21:00

Clear. Feels like 32°. High 48°, low 34°.

Pressure30.71 inHg

Wind3.8 mph E

Humidity82%

Visibility6.2 mi

Dew point29°

Thu, 15October

48°/34°

Fri, 16October

66°/32°

Sat, 17October

71°/47°

Sun, 18October

60°/39°

Mon, 19October

68°/39°

Tue, 20October

64°/45°

Wed, 21October

61°/37°

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	46°	35°	35°	35°	38°	41°	44°	44°	41°	38°	36°	35°
Feels like	46°	29°	28°	27°	31°	34°	38°	39°	38°	37°	35°	31°
Pressure, inHg	30.68	30.68	30.68	30.68	30.68	30.68	30.68	30.68	30.68	30.68	30.68	30.71
Wind, mph	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	2
Humidity, %	56%	56%	56%	56%	56%	56%	56%	56%	56%	56%	56%	79%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	34°	32°	32°	33°	37°	50°	59°	64°	66°	57°	49°	49°
Feels like	29°	28°	29°	31°	35°	47°	56°	61°	64°	54°	47°	49°
Pressure, inHg	30.68	30.65	30.56	30.47	30.42	30.39	30.33	30.24	30.21	30.18	30.15	30.15
Wind, mph	2.4	2	1.7	1.5	1.4	1.5	2.4	3.4	3.1	2.7	2.3	1.1
Humidity, %	85%	90%	92%	84%	72%	44%	31%	26%	29%	39%	47%	46%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	48°	48°	49°	49°	48°	61°	68°	71°	69°	60°	52°	48°
Feels like	47°	48°	49°	49°	46°	58°	66°	69°	67°	58°	49°	47°
Pressure, inHg	30.09	30.06	30.03	30.00	29.97	29.97	29.91	29.88	29.85	29.88	29.91	29.97
Wind, mph	1.3	1.2	1	0.8	2.3	2.9	4.3	3.9	4.1	3.7	2.2	1.4
Humidity, %	47%	47%	46%	45%	47%	32%	24%	23%	26%	34%	46%	54%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	47°	44°	42°	40°	39°	49°	55°	58°	60°	53°	44°	41°
Feels like	45°	41°	42°	40°	37°	47°	53°	56°	57°	50°	43°	41°
Pressure, inHg	30.00	30.09	30.12	30.12	30.15	30.12	30.06	30.03	29.97	29.97	29.97	29.97
Wind, mph	2.4	2.4	0.6	0.5	1.4	1.8	2.5	0.2	0.9	1.1	1.4	1.3
Humidity, %	55%	69%	72%	74%	75%	59%	43%	41%	40%	58%	70%	74%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	40°	39°	39°	39°	42°	50°	64°	67°	65°	59°	51°	53°
Feels like	37°	39°	39°	39°	41°	48°	62°	64°	63°	56°	49°	51°
Pressure, inHg	29.97	29.94	29.91	29.88	29.85	29.85	29.83	29.77	29.74	29.71	29.74	29.83
Wind, mph	1.7	1.1	0.9	1.2	1.5	1	1	2.5	2.6	1.5	1.2	3.2
Humidity, %	75%	77%	77%	74%	70%	57%	36%	30%	32%	42%	57%	36%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	—

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	60°	47°	47°	47°	51°	54°	58°	59°	58°	56°	54°	51°
Feels like	60°	46°	46°	47°	50°	53°	56°	57°	56°	55°	52°	49°
Pressure, inHg	29.80	29.80	29.80	29.80	29.80	29.80	29.80	29.80	29.80	29.80	29.80	29.80
Wind, mph	2.3	2.3	2.3	2.3	2.3	2.3	2.3	2.3	2.3	2.3	2.3	2.3
Humidity, %	47%	47%	47%	47%	47%	47%	47%	47%	47%	47%	47%	47%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	54°	48°	43°	37°	42°	47°	52°	54°	54°	55°	54°	53°
Feels like	54°	46°	42°	37°	42°	46°	50°	52°	52°	52°	51°	50°
Pressure, inHg	30.03	30.03	30.03	30.03	30.03	30.03	30.03	30.03	30.03	30.03	30.03	30.03
Wind, mph	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8
Humidity, %	57%	57%	57%	57%	57%	57%	57%	57%	57%	57%	57%	57%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

See detailed hourly forecast

Sun and moon today

Day length — 10 h 56 min

Sunrise — 07:35

Sunset — 18:31

Sunrise and sunset in local time

Waxing crescent, 23%

Sunrise — —

Sunset — —

Lewistown, MT climate by month

The annual average temperature in Lewistown, MT is 44°. The warmest month is July (average high 79.5°), and the coldest is January (average low 13.7°). About 22.5 inches of precipitation fall per year, most of it in May (3.6 in). Figures are 60-year climate normals and records from 66 years of observations.

Month	High	Low	Precipitation	Wet days	Record high	Record low
January	31.2°	13.7°	1.2 in	8	62.2° (2024)	-39.5° (1996)
February	34°	15.9°	1.0 in	7	65.1° (1992)	-39.8° (1996)
March	42.4°	23.2°	1.5 in	9	71.6° (2025)	-30.8° (1960)
April	51°	30.9°	2.6 in	12	80.2° (1980)	-6.9° (2002)
May	61°	40.4°	3.6 in	14	86.4° (1980)	4.3° (1967)
June	70°	49.1°	3.1 in	13	97.9° (2021)	27.1° (1969)
July	79.5°	56.1°	1.7 in	8	100° (2007)	36.3° (1972)
August	78.9°	55.6°	1.7 in	7	99.5° (2018)	31.6° (1992)
September	68.8°	47.1°	1.8 in	7	98.6° (2022)	10° (1965)
October	55.4°	36.1°	1.7 in	8	87.4° (2011)	-16.4° (1991)
November	41.7°	24.9°	1.2 in	7	70° (1999)	-27° (1985)
December	32.4°	16.1°	1.3 in	8	62.6° (2021)	-47.2° (1983)