Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 75°F. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Sunday
4th Oct
75

45

11

4
Monday
5th Oct
81

57

11

4
Tuesday
6th Oct
72

50

10

4
Wednesday
7th Oct
72

48

7

4
Thursday
8th Oct
68

45

10

4

5-day weather forecast updated at 04:02 on Sunday 4th October 2026 GMT

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The 5-day weather forecast for Montana (Lewistown) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Lewistown weather forecast by day

Below are the detailed weather forecasts for Lewistown for the next 5 days.

Lewistown weather for Sunday 4th October 2026

Expect clear skies in Lewistown, Montana with a maximum temperature of 75°F, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the south-east.

75
°F maximum temperature
45
°F minimum temperature
clear skies
11
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
75
°F wind chill
7
mph wind from SE

Lewistown weather for Monday 5th October 2026

Expect clear skies in Lewistown, Montana with a maximum temperature of 81°F, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 17 mph from the west.

81
°F maximum temperature
57
°F minimum temperature
clear skies
11
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
81
°F wind chill
17
mph wind from W

Lewistown weather for Tuesday 6th October 2026

Expect clear skies in Lewistown, Montana with a maximum temperature of 72°F, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the south-west.

72
°F maximum temperature
50
°F minimum temperature
clear skies
10
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
6
mph wind from SW

Lewistown weather for Wednesday 7th October 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 72°F, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the north-west.

72
°F maximum temperature
48
°F minimum temperature
scattered clouds
7
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
7
mph wind from NW

Lewistown weather for Thursday 8th October 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 68°F, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the south-east.