Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 12°C. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Saturday
7th Mar
12

-2

6

3
Sunday
8th Mar
14

2

7

3
Monday
9th Mar
4

-4

1

3
Tuesday
10th Mar
0

-7

1

2
Wednesday
11th Mar
3

-6

3

3

5-day weather forecast updated at 04:03 on Saturday 7th 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 Saturday 7th March 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 32 kph from the west.

12
°C maximum temperature
-2
°C minimum temperature
scattered clouds
6
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
12
°C wind chill
32
kph wind from W

Lewistown weather for Sunday 8th March 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 42 kph from the west.

14
°C maximum temperature
2
°C minimum temperature
broken clouds
7
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
42
kph wind from W

Lewistown weather for Monday 9th March 2026

Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 4°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0-2 mm of sleet/snow expected with 23% chance of some sleet or snow and a moderate breeze of 27 kph from the west.

4
°C maximum temperature
-4
°C minimum temperature
cloudy with sleet or snow
1
hour of sunshine
3
UV index (Moderate)
23
% chance of some sleet or snow
<2
mm of sleet/snow expected
-1
°C wind chill
27
kph wind from W

Lewistown weather for Tuesday 10th March 2026

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of 0°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0-2 cm of snow expected with 50% chance of some snow and a fresh breeze of 29 kph from the west.

0
°C maximum temperature
-7
°C minimum temperature
mostly cloudy with light snow
1
hour of sunshine
2
UV index (Low)
50
% chance of some snow
<2
cm of snow expected
-6
°C wind chill
29
kph wind from W

Lewistown weather for Wednesday 11th March 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 3°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 33 kph from the west.