Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be -8°C. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Saturday
24th Jan
-8

-16

0

1
Sunday
25th Jan
-8

-20

8

2
Monday
26th Jan
3

-7

8

2
Tuesday
27th Jan
3

-6

8

2
Wednesday
28th Jan
3

-6

2

2

5-day weather forecast updated at 04:03 on Saturday 24th January 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 24th January 2026

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of -8°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 cm of snow expected with 100% chance of some snow and a moderate breeze of 28 kph from the north-west.

-8
°C maximum temperature
-16
°C minimum temperature
mostly cloudy with light snow
0
hours of sunshine
1
UV index (Low)
100
% chance of some snow
<5
cm of snow expected
-16
°C wind chill
28
kph wind from NW

Lewistown weather for Sunday 25th January 2026

Expect clear skies with flurries of snow in Lewistown, Montana with a maximum temperature of -8°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0-2 cm of snow expected with 11% chance of some snow and a gentle breeze of 19 kph from the south-west.

-8
°C maximum temperature
-20
°C minimum temperature
clear skies with flurries of snow
8
hours of sunshine
2
UV index (Low)
11
% chance of some snow
<2
cm of snow expected
-15
°C wind chill
19
kph wind from SW

Lewistown weather for Monday 26th January 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 3°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the west.

3
°C maximum temperature
-7
°C minimum temperature
scattered clouds
8
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
-2
°C wind chill
19
kph wind from W

Lewistown weather for Tuesday 27th January 2026

3
°C maximum temperature
-6
°C minimum temperature
scattered clouds
8
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
-1
°C wind chill
16
kph wind from SW

Lewistown weather for Wednesday 28th January 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 3°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-west.