Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 15°C. Select a day from the live weather forecast for Hamilton, Montana, USA for more weather parameters.

Saturday
13th Dec
15

5

5

1
Sunday
14th Dec
12

3

7

1
Monday
15th Dec
11

5

2

1
Tuesday
16th Dec
11

6

4

1
Wednesday
17th Dec
9

1

4

1

5-day weather forecast updated at 04:04 on Sunday 14th 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 broken clouds in Hamilton, Montana with a maximum temperature of 15°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south.

15
°C maximum temperature
5
°C minimum temperature
broken clouds
5
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
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 7 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
7
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 11°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 64% chance of some rain and a gentle breeze of 18 kph from the south.

11
°C maximum temperature
5
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
64
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
18
kph wind from S

Hamilton weather for Tuesday 16th December 2025

Expect sunshine and showers in Hamilton, Montana with a maximum temperature of 11°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 61% chance of some rain and a gentle breeze of 18 kph from the south-west.

11
°C maximum temperature
6
°C minimum temperature
sunshine and showers
4
hours of sunshine
1
UV index (Low)
61
% chance of some rain
<5
mm of rainfall expected
11
°C wind chill
18
kph wind from SW

Hamilton weather for Wednesday 17th December 2025

Expect sunshine and showers in Hamilton, Montana with a maximum temperature of 9°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 90% chance of some rain and a fresh breeze of 29 kph from the west.