As of 12:32 MDT

Weather in Lewistown, MT

66°

Lewistown, Saturday, 17 October, 12:32

Overcast. Feels like 64°. High 68°, low 44°.

Pressure29.91 inHg

Wind9.4 mph SW

Humidity22%

Visibility6.2 mi

Dew point27°

Sat, 17October

68°/44°

Sun, 18October

57°/38°

Mon, 19October

69°/35°

Tue, 20October

55°/38°

Wed, 21October

66°/37°

Thu, 22October

71°/47°

Fri, 23October

52°/39°

	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	66°	47°	46°	45°	51°	57°	63°	67°	68°	62°	52°	48°
Feels like	66°	46°	45°	43°	49°	55°	61°	65°	66°	59°	49°	48°
Pressure, inHg	29.91	29.91	29.91	29.91	29.91	29.91	29.91	29.91	29.88	29.85	29.91	29.94
Wind, mph	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.1	4.5	3.6	2.5	1.1
Humidity, %	22%	22%	22%	22%	22%	22%	22%	23%	24%	34%	44%	51%
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

	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°	44°	42°	40°	38°	48°	55°	57°	56°	51°	46°	44°
Feels like	46°	44°	42°	40°	38°	47°	52°	55°	53°	49°	40°	39°
Pressure, inHg	30.00	30.06	30.09	30.12	30.15	30.18	30.12	30.09	30.09	30.09	30.09	30.06
Wind, mph	0.8	1.3	0.2	1.1	0.2	1.5	1.8	3.2	5.3	5.9	5	4
Humidity, %	57%	61%	64%	70%	76%	58%	41%	41%	47%	53%	59%	61%
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°	37°	35°	36°	37°	53°	65°	68°	68°	59°	48°	44°
Feels like	36°	33°	32°	33°	34°	51°	63°	66°	66°	57°	47°	43°
Pressure, inHg	30.06	30.00	30.00	29.97	29.94	29.91	29.88	29.85	29.83	29.83	29.85	29.88
Wind, mph	2.5	2.2	1.7	1.6	1.7	1.7	2.1	3.7	1.8	0.5	1.7	1.4
Humidity, %	70%	80%	87%	83%	82%	55%	35%	27%	30%	52%	71%	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	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	43°	41°	42°	43°	38°	46°	51°	55°	55°	49°	45°	42°
Feels like	43°	41°	42°	43°	35°	45°	49°	53°	53°	49°	45°	42°
Pressure, inHg	29.88	29.88	29.88	29.94	30.06	30.12	30.09	30.06	30.06	30.09	30.12	30.15
Wind, mph	1.3	1.2	1	0.4	1.5	1.4	2	2.8	2.4	1.2	0.4	0.4
Humidity, %	78%	76%	72%	65%	84%	77%	67%	59%	57%	73%	80%	83%
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	41°	39°	38°	37°	40°	48°	61°	61°	60°	59°	56°	53°
Feels like	41°	37°	35°	33°	35°	46°	59°	59°	58°	57°	55°	52°
Pressure, inHg	30.15	30.12	30.12	30.09	30.09	30.06	30.03	30.03	30.03	30.03	30.03	30.03
Wind, mph	0.7	1.5	1.9	2	2.7	2.3	0.7	3.1	3.1	3.1	3.1	3.1
Humidity, %	83%	87%	89%	92%	91%	76%	44%	44%	44%	44%	44%	44%
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	—	—	—	—	—

	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	67°	51°	49°	47°	53°	58°	64°	66°	64°	62°	60°	56°
Feels like	67°	49°	48°	47°	53°	57°	62°	64°	62°	61°	58°	55°
Pressure, inHg	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83
Wind, mph	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6
Humidity, %	43%	43%	43%	43%	43%	43%	43%	43%	43%	43%	43%	43%
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	52°	42°	45°	49°	50°	51°	52°	50°	46°	42°	39°	40°
Feels like	52°	36°	42°	48°	49°	49°	50°	47°	42°	36°	33°	33°
Pressure, inHg	29.74	29.74	29.74	29.74	29.74	29.74	29.74	29.74	29.74	29.74	29.74	29.74
Wind, mph	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5
Humidity, %	68%	68%	68%	68%	68%	68%	68%	68%	68%	68%	68%	68%
Precipitation	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in	0.02 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

See detailed hourly forecast

Sun and moon today

Day length — 10 h 49 min

Sunrise — 07:38

Sunset — 18:27

Sunrise and sunset in local time

First quarter, 39%

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)