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
22nd Jan
-9

-17

1

1
Friday
23rd Jan
-14

-20

6

2
Saturday
24th Jan
-9

-18

0

1
Sunday
25th Jan
-2

-15

8

2
Monday
26th Jan
0

-11

9

1

5-day weather forecast updated at 04:03 on Thursday 22nd January 2026 GMT

More about Lewistown

Lewistown by month

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

Recommended for Montana

Love Holidays sale: up to £600 off holidays

Sale

Save up to £600 on selected holidays in 2026/2027
Book discounted holidays with 'Sale' label
Discounts varies by destination & holiday type. T&Cs apply

Go to Love Holidays deal >>

Expires at 23:59 on Sunday 8th Feb 2026 · View all Love Holidays 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 22nd January 2026

Expect mostly cloudy with light snow 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 cm of snow expected with 60% chance of some snow and a gentle breeze of 17 kph from the north-west.

-9
°C maximum temperature
-17
°C minimum temperature
mostly cloudy with light snow
1
hour of sunshine
1
UV index (Low)
60
% chance of some snow
<2
cm of snow expected
-16
°C wind chill
17
kph wind from NW

Lewistown weather for Friday 23rd January 2026

Expect clear skies with flurries of snow in Lewistown, Montana with a maximum temperature of -14°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0-2 cm of snow expected with 30% chance of some snow and a gentle breeze of 16 kph from the east.

-14
°C maximum temperature
-20
°C minimum temperature
clear skies with flurries of snow
6
hours of sunshine
2
UV index (Low)
30
% chance of some snow
<2
cm of snow expected
-22
°C wind chill
16
kph wind from E

Lewistown weather for Saturday 24th January 2026

Expect mostly cloudy with light snow in Lewistown, Montana with a maximum temperature of -9°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 cm of snow expected with 92% chance of some snow and a moderate breeze of 23 kph from the north-west.

-9
°C maximum temperature
-18
°C minimum temperature
mostly cloudy with light snow
0
hours of sunshine
1
UV index (Low)
92
% chance of some snow
<5
cm of snow expected
-17
°C wind chill
23
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 -2°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 2-5 cm of snow expected with 17% chance of some snow and a gentle breeze of 19 kph from the south-west.

-2
°C maximum temperature
-15
°C minimum temperature
clear skies with flurries of snow
8
hours of sunshine
2
UV index (Low)
17
% chance of some snow
<5
cm of snow expected
-8
°C wind chill
19
kph wind from SW

Lewistown weather for Monday 26th January 2026

Expect clear skies in Lewistown, Montana with a maximum temperature of 0°C, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 cm of snow expected and a moderate breeze of 21 kph from the west.