Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 10°C. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Sunday
1st Mar
10

-6

9

3
Monday
2nd Mar
11

0

11

3
Tuesday
3rd Mar
13

0

7

3
Wednesday
4th Mar
13

2

0

2
Thursday
5th Mar
6

-1

3

3

5-day weather forecast updated at 04:05 on Sunday 1st March 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 1st March 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 10°C, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

10
°C maximum temperature
-6
°C minimum temperature
scattered clouds
9
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
11
kph wind from S

Lewistown weather for Monday 2nd March 2026

Expect clear skies in Lewistown, Montana with a maximum temperature of 11°C, maximum UV of 3 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-west.

11
°C maximum temperature
0
°C minimum temperature
clear skies
11
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
11
°C wind chill
12
kph wind from SW

Lewistown weather for Tuesday 3rd March 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.

13
°C maximum temperature
0
°C minimum temperature
scattered clouds
7
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
13
°C wind chill
16
kph wind from SW

Lewistown weather for Wednesday 4th March 2026

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 13°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 70% chance of some sleet or snow and a moderate breeze of 20 kph from the south-west.

13
°C maximum temperature
2
°C minimum temperature
cloudy with sleet or snow
0
hours of sunshine
2
UV index (Low)
70
% chance of some sleet or snow
<2
mm of sleet/snow expected
0
no heat & humidity
20
kph wind from SW

Lewistown weather for Thursday 5th March 2026

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of 6°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0-2 cm of snow expected with 31% chance of some snow and a moderate breeze of 25 kph from the west.