Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 12°C. Select a day from the live weather forecast for Hamilton, Montana, USA for more weather parameters.

Saturday
13th Dec
12

4

8

1
Sunday
14th Dec
12

3

8

1
Monday
15th Dec
12

4

2

1
Tuesday
16th Dec
9

7

2

0
Wednesday
17th Dec
7

1

3

1

5-day weather forecast updated at 04:05 on Friday 12th 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 Saturday 13th December 2025

Expect scattered clouds in Hamilton, Montana with a maximum temperature of 12°C, maximum UV of 1 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south.

12
°C maximum temperature
4
°C minimum temperature
scattered clouds
8
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
12
°C wind chill
13
kph wind from S

Hamilton weather for Sunday 14th December 2025

Expect scattered clouds in Hamilton, Montana with a maximum temperature of 12°C, maximum UV of 1 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south.

12
°C maximum temperature
3
°C minimum temperature
scattered clouds
8
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
12
°C wind chill
12
kph wind from S

Hamilton weather for Monday 15th December 2025

Expect mostly cloudy with light rain in Hamilton, Montana with a maximum temperature of 12°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 46% chance of some rain and a gentle breeze of 19 kph from the south.

12
°C maximum temperature
4
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
46
% chance of some rain
<5
mm of rainfall expected
12
°C wind chill
19
kph wind from S

Hamilton weather for Tuesday 16th December 2025

Expect mostly cloudy with light rain in Hamilton, Montana with a maximum temperature of 9°C and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 84% chance of some rain and a moderate breeze of 20 kph from the south.

9
°C maximum temperature
7
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
84
% chance of some rain
<5
mm of rainfall expected
6
°C wind chill
20
kph wind from S

Hamilton weather for Wednesday 17th December 2025

Expect mostly cloudy with rain in Hamilton, Montana with a maximum temperature of 7°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 30-40 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 19 kph from the south-west.