Lewistown weather live forecast

Today's maximum temperature in Lewistown is expected to be 9°C. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.

Thursday
15th Jan
9

-3

3

1
Friday
16th Jan
0

-7

1

1
Saturday
17th Jan
8

-8

8

1
Sunday
18th Jan
1

-9

2

0
Monday
19th Jan
3

-8

6

1

5-day weather forecast updated at 04:04 on Friday 16th January 2026 GMT

More about Lewistown

Lewistown by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Montana

Travelbag: up to 50% off 2026 holidays

Sale

Save up to 50% on 2026 holidays & tours with Travelbag
Book selected stays in popular destinations around the world
Travel before 31st December 2026 (inclusive)

Go to Travelbag deal >>

Expires at 23:59 on Saturday 31st Jan 2026 · View all Travelbag offers

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 Thursday 15th January 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 9°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 40 kph from the north-west.

9
°C maximum temperature
-3
°C minimum temperature
broken clouds
3
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
5
°C wind chill
40
kph wind from NW

Lewistown weather for Friday 16th January 2026

Expect broken clouds in Lewistown, Montana with a maximum temperature of 0°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 cm of snow expected and a fresh breeze of 38 kph from the north-west.

0
°C maximum temperature
-7
°C minimum temperature
broken clouds
1
hour of sunshine
1
UV index (Low)
0
cm of snow expected
-7
°C wind chill
38
kph wind from NW

Lewistown weather for Saturday 17th January 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 8°C, maximum UV of 1 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the west.

8
°C maximum temperature
-8
°C minimum temperature
scattered clouds
8
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
5
°C wind chill
24
kph wind from W

Lewistown weather for Sunday 18th January 2026

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of 1°C and 2 hours of bright sunshine. There are 0-2 cm of snow expected with 31% chance of some snow and a fresh breeze of 29 kph from the north-west.

1
°C maximum temperature
-9
°C minimum temperature
mostly cloudy with light snow
2
hours of sunshine
0
UV index (None)
31
% chance of some snow
<2
cm of snow expected
-5
°C wind chill
29
kph wind from NW

Lewistown weather for Monday 19th January 2026

Expect scattered clouds in Lewistown, Montana with a maximum temperature of 3°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the west.