Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 11°C. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Tuesday
28th Apr
11

-1

6

6
Wednesday
29th Apr
12

-1

9

5
Thursday
30th Apr
14

-1

8

6
Friday
1st May
20

1

14

7
Saturday
2nd May
17

4

11

3

5-day weather forecast updated at 04:03 on Tuesday 28th April 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 Tuesday 28th April 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 11°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-west.

11
°C maximum temperature
-1
°C minimum temperature
broken clouds
6
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
11
°C wind chill
16
kph wind from NW

Lewistown weather for Wednesday 29th April 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 12°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-west.

12
°C maximum temperature
-1
°C minimum temperature
broken clouds
9
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
12
°C wind chill
19
kph wind from NW

Lewistown weather for Thursday 30th April 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 14°C, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north.

14
°C maximum temperature
-1
°C minimum temperature
scattered clouds
8
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
14
°C wind chill
10
kph wind from N

Lewistown weather for Friday 1st May 2026

Expect clear skies in Lewistown, Montana with a maximum temperature of 20°C, maximum UV of 7 (High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south.

20
°C maximum temperature
1
°C minimum temperature
clear skies
14
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
20
°C wind chill
10
kph wind from S

Lewistown weather for Saturday 2nd May 2026

Expect sunshine and showers in Lewistown, Montana with a maximum temperature of 17°C, maximum UV of 3 (Moderate) and 11 hours of bright sunshine. There are 0-2 mm of rainfall expected with 34% chance of some rain and a gentle breeze of 13 kph from the north.