Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 17°C. Select a day from the live weather forecast for Hamilton, Montana, USA for more weather parameters.

Friday
27th Mar
17

-3

11

5
Saturday
28th Mar
19

2

4

5
Sunday
29th Mar
18

2

6

4
Monday
30th Mar
14

3

4

2
Tuesday
31st Mar
9

0

4

4

5-day weather forecast updated at 04:03 on Friday 27th March 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 27th March 2026

Expect clear skies in Hamilton, Montana with a maximum temperature of 17°C, maximum UV of 5 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south-east.

17
°C maximum temperature
-3
°C minimum temperature
clear skies
11
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
17
°C wind chill
9
kph wind from SE

Hamilton weather for Saturday 28th March 2026

Expect broken clouds in Hamilton, Montana with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

19
°C maximum temperature
2
°C minimum temperature
broken clouds
4
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
19
°C wind chill
11
kph wind from S

Hamilton weather for Sunday 29th March 2026

Expect broken clouds in Hamilton, Montana with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-west.

18
°C maximum temperature
2
°C minimum temperature
broken clouds
6
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
13
kph wind from SW

Hamilton weather for Monday 30th March 2026

Expect mostly cloudy with light rain in Hamilton, Montana with a maximum temperature of 14°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 54% chance of some rain and a gentle breeze of 17 kph from the west.

14
°C maximum temperature
3
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
2
UV index (Low)
54
% chance of some rain
<5
mm of rainfall expected
14
°C wind chill
17
kph wind from W

Hamilton weather for Tuesday 31st March 2026

Expect cloudy with sleet or snow in Hamilton, Montana with a maximum temperature of 9°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of sleet/snow expected with 56% chance of some sleet or snow and a light breeze of 9 kph from the west.