Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 39°F. Select a day from the live weather forecast for Hamilton, Montana, USA for more weather parameters.

Friday
16th Jan
39

27

8

1
Saturday
17th Jan
43

27

9

1
Sunday
18th Jan
41

27

9

1
Monday
19th Jan
39

25

6

1
Tuesday
20th Jan
45

25

5

1

5-day weather forecast updated at 04:04 on Friday 16th January 2026 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 16th January 2026

Expect scattered clouds in Hamilton, Montana with a maximum temperature of 39°F, maximum UV of 1 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 mph from the south.

39
°F maximum temperature
27
°F minimum temperature
scattered clouds
8
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
36
°F wind chill
4
mph wind from S

Hamilton weather for Saturday 17th January 2026

Expect clear skies in Hamilton, Montana with a maximum temperature of 43°F, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 5 mph from the south.

43
°F maximum temperature
27
°F minimum temperature
clear skies
9
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
39
°F wind chill
5
mph wind from S

Hamilton weather for Sunday 18th January 2026

Expect clear skies in Hamilton, Montana with a maximum temperature of 41°F, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the south.

41
°F maximum temperature
27
°F minimum temperature
clear skies
9
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
37
°F wind chill
6
mph wind from S

Hamilton weather for Monday 19th January 2026

Expect scattered clouds in Hamilton, Montana with a maximum temperature of 39°F, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the south.

39
°F maximum temperature
25
°F minimum temperature
scattered clouds
6
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
36
°F wind chill
6
mph wind from S

Hamilton weather for Tuesday 20th January 2026

Expect scattered clouds in Hamilton, Montana with a maximum temperature of 45°F, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the south.