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.

Tuesday
23rd Dec
10

-1

2

1
Wednesday
24th Dec
11

2

3

1
Thursday
25th Dec
9

0

1

1
Friday
26th Dec
8

1

1

1
Saturday
27th Dec
0

-12

1

1

5-day weather forecast updated at 04:03 on Tuesday 23rd December 2025 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 23rd December 2025

Expect broken clouds in Lewistown, Montana with a maximum temperature of 10°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south.

10
°C maximum temperature
-1
°C minimum temperature
broken clouds
2
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
8
°C wind chill
13
kph wind from S

Lewistown weather for Wednesday 24th December 2025

Expect broken clouds in Lewistown, Montana with a maximum temperature of 11°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-east.

11
°C maximum temperature
2
°C minimum temperature
broken clouds
3
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from SE

Lewistown weather for Thursday 25th December 2025

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 9°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 27% chance of some rain and a gentle breeze of 15 kph from the south-west.

9
°C maximum temperature
0
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
1
UV index (Low)
27
% chance of some rain
<2
mm of rainfall expected
7
°C wind chill
15
kph wind from SW

Lewistown weather for Friday 26th December 2025

Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 8°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 26% chance of some rain and a moderate breeze of 23 kph from the west.

8
°C maximum temperature
1
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
1
UV index (Low)
26
% chance of some rain
<5
mm of rainfall expected
5
°C wind chill
23
kph wind from W

Lewistown weather for Saturday 27th December 2025

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of 0°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 cm of snow expected with 21% chance of some snow and a moderate breeze of 26 kph from the north-west.