Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 2°C. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Tuesday
10th Mar
2

-9

6

2
Wednesday
11th Mar
5

-7

1

3
Thursday
12th Mar
7

-4

0

2
Friday
13th Mar
1

-4

0

3
Saturday
14th Mar
0

-11

0

3

5-day weather forecast updated at 04:03 on Wednesday 11th 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 Tuesday 10th March 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 2°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the west.

2
°C maximum temperature
-9
°C minimum temperature
broken clouds
6
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
-3
°C wind chill
22
kph wind from W

Lewistown weather for Wednesday 11th March 2026

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 5°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 19% chance of some rain and a fresh breeze of 34 kph from the west.

5
°C maximum temperature
-7
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
3
UV index (Moderate)
19
% chance of some rain
<2
mm of rainfall expected
0
°C wind chill
34
kph wind from W

Lewistown weather for Thursday 12th March 2026

Expect overcast with light snow in Lewistown, Montana with a maximum temperature of 7°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 5-10 cm of snow expected with 98% chance of some snow and a moderate gale of 55 kph from the west.

7
°C maximum temperature
-4
°C minimum temperature
overcast with light snow
0
hours of sunshine
2
UV index (Low)
98
% chance of some snow
<10
cm of snow expected
1
°C wind chill
55
kph wind from W

Lewistown weather for Friday 13th March 2026

Expect cloudy with some snow in Lewistown, Montana with a maximum temperature of 1°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 10-20 cm of snow expected with 99% chance of some snow and a gentle breeze of 16 kph from the north-west.

1
°C maximum temperature
-4
°C minimum temperature
cloudy with some snow
0
hours of sunshine
3
UV index (Moderate)
99
% chance of some snow
<20
cm of snow expected
-3
°C wind chill
16
kph wind from NW

Lewistown weather for Saturday 14th March 2026

Expect cloudy with some snow in Lewistown, Montana with a maximum temperature of 0°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 10-20 cm of snow expected with 94% chance of some snow and a moderate breeze of 26 kph from the north-west.