Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 4°C. Select a day from the live weather forecast for Hamilton, Montana, USA for more weather parameters.

Tuesday
30th Dec
4

-6

7

1
Wednesday
31st Dec
5

-2

8

1
Thursday
1st Jan
5

-1

0

1
Friday
2nd Jan
7

2

5

1
Saturday
3rd Jan
7

1

2

1

5-day weather forecast updated at 04:03 on Tuesday 30th 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 Tuesday 30th December 2025

Expect scattered clouds in Hamilton, Montana with a maximum temperature of 4°C, maximum UV of 1 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the south.

4
°C maximum temperature
-6
°C minimum temperature
scattered clouds
7
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
2
°C wind chill
7
kph wind from S

Hamilton weather for Wednesday 31st December 2025

Expect scattered clouds in Hamilton, Montana with a maximum temperature of 5°C, maximum UV of 1 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south.

5
°C maximum temperature
-2
°C minimum temperature
scattered clouds
8
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
3
°C wind chill
8
kph wind from S

Hamilton weather for Thursday 1st January 2026

Expect overcast skies in Hamilton, Montana with a maximum temperature of 5°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south.

5
°C maximum temperature
-1
°C minimum temperature
overcast skies
0
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
3
°C wind chill
9
kph wind from S

Hamilton weather for Friday 2nd January 2026

Expect broken clouds in Hamilton, Montana with a maximum temperature of 7°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south.

7
°C maximum temperature
2
°C minimum temperature
broken clouds
5
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
5
°C wind chill
10
kph wind from S

Hamilton weather for Saturday 3rd January 2026

Expect mostly cloudy with light rain in Hamilton, Montana with a maximum temperature of 7°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 57% chance of some rain and a gentle breeze of 15 kph from the south.