Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 7°C. Select a day from the live weather forecast for Hamilton, Montana, USA for more weather parameters.

Friday
19th Dec
7

1

4

0
Saturday
20th Dec
4

-1

5

1
Sunday
21st Dec
5

-2

1

1
Monday
22nd Dec
6

2

0

1
Tuesday
23rd Dec
6

0

0

1

5-day weather forecast updated at 04:04 on Friday 19th December 2025 GMT

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The 5-day weather forecast for Montana (Hamilton) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Hamilton weather forecast by day

Below are the detailed weather forecasts for Hamilton for the next 5 days.

Hamilton weather for Friday 19th December 2025

Expect cloudy with sleet or snow in Hamilton, Montana with a maximum temperature of 7°C and 4 hours of bright sunshine. There are 20-30 mm of sleet/snow expected with 98% chance of some sleet or snow and a moderate breeze of 25 kph from the south.

7
°C maximum temperature
1
°C minimum temperature
cloudy with sleet or snow
4
hours of sunshine
0
UV index (None)
98
% chance of some sleet or snow
<30
mm of sleet/snow expected
3
°C wind chill
25
kph wind from S

Hamilton weather for Saturday 20th December 2025

Expect clear skies with flurries of snow in Hamilton, Montana with a maximum temperature of 4°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0-2 cm of snow expected with 5% chance of some snow and a gentle breeze of 18 kph from the south.

4
°C maximum temperature
-1
°C minimum temperature
clear skies with flurries of snow
5
hours of sunshine
1
UV index (Low)
5
% chance of some snow
<2
cm of snow expected
0
°C wind chill
18
kph wind from S

Hamilton weather for Sunday 21st December 2025

Expect cloudy with sleet or snow in Hamilton, Montana with a maximum temperature of 5°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of sleet/snow expected with 44% chance of some sleet or snow and a light breeze of 11 kph from the south.

5
°C maximum temperature
-2
°C minimum temperature
cloudy with sleet or snow
1
hour of sunshine
1
UV index (Low)
44
% chance of some sleet or snow
<2
mm of sleet/snow expected
2
°C wind chill
11
kph wind from S

Hamilton weather for Monday 22nd December 2025

Expect cloudy with sleet or snow in Hamilton, Montana with a maximum temperature of 6°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 53% chance of some sleet or snow and a light breeze of 9 kph from the south.

6
°C maximum temperature
2
°C minimum temperature
cloudy with sleet or snow
0
hours of sunshine
1
UV index (Low)
53
% chance of some sleet or snow
<2
mm of sleet/snow expected
5
°C wind chill
9
kph wind from S

Hamilton weather for Tuesday 23rd December 2025

Expect mostly cloudy with light rain in Hamilton, Montana with a maximum temperature of 6°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 49% chance of some rain and a light breeze of 7 kph from the south.