Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 5°C. Select a day from the live weather forecast for Hamilton, Montana, USA for more weather parameters.

Sunday
7th Dec
5

2

0

1
Monday
8th Dec
7

4

1

1
Tuesday
9th Dec
7

4

0

1
Wednesday
10th Dec
8

4

1

0
Thursday
11th Dec
8

7

1

0

5-day weather forecast updated at 04:04 on Monday 8th 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 Sunday 7th December 2025

Expect mostly cloudy with light rain in Hamilton, Montana with a maximum temperature of 5°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 100% chance of some rain and a gentle breeze of 15 kph from the south-east.

5
°C maximum temperature
2
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
1
UV index (Low)
100
% chance of some rain
<2
mm of rainfall expected
2
°C wind chill
15
kph wind from SE

Hamilton weather for Monday 8th December 2025

Expect mostly cloudy with rain in Hamilton, Montana with a maximum temperature of 7°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 90% chance of some rain and a moderate breeze of 21 kph from the south.

7
°C maximum temperature
4
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
1
UV index (Low)
90
% chance of some rain
<20
mm of rainfall expected
4
°C wind chill
21
kph wind from S

Hamilton weather for Tuesday 9th December 2025

Expect cloudy with some rain in Hamilton, Montana with a maximum temperature of 7°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 87% chance of some rain and a moderate breeze of 22 kph from the south.

7
°C maximum temperature
4
°C minimum temperature
cloudy with some rain
0
hours of sunshine
1
UV index (Low)
87
% chance of some rain
<10
mm of rainfall expected
4
°C wind chill
22
kph wind from S

Hamilton weather for Wednesday 10th December 2025

Expect cloudy with some rain in Hamilton, Montana with a maximum temperature of 8°C and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 99% chance of some rain and a gentle breeze of 17 kph from the south-west.

8
°C maximum temperature
4
°C minimum temperature
cloudy with some rain
1
hour of sunshine
0
UV index (None)
99
% chance of some rain
<20
mm of rainfall expected
5
°C wind chill
17
kph wind from SW

Hamilton weather for Thursday 11th December 2025

Expect mostly cloudy with rain in Hamilton, Montana with a maximum temperature of 8°C and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 75% chance of some rain and a gentle breeze of 16 kph from the south-west.