Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 21°C. Select a day from the live weather forecast for Hamilton, Montana, USA for more weather parameters.

Sunday
19th Apr
21

0

6

7
Monday
20th Apr
24

6

7

6
Tuesday
21st Apr
26

7

8

7
Wednesday
22nd Apr
15

5

0

5
Thursday
23rd Apr
8

1

6

3

5-day weather forecast updated at 04:03 on Monday 20th April 2026 GMT

More about Hamilton

Hamilton by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Montana

Crystal Ski: Top ski deals to USA

Sale

Save on skiing holidays to the USA in winter 2025/2026
Book early with Crystal Ski for the best deals
Filter by promotional offers, duration, board basis & more

Go to Crystal Ski deal >>

View all Crystal Ski offers

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 19th April 2026

Expect broken clouds in Hamilton, Montana with a maximum temperature of 21°C, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south.

21
°C maximum temperature
0
°C minimum temperature
broken clouds
6
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
8
kph wind from S

Hamilton weather for Monday 20th April 2026

Expect broken clouds in Hamilton, Montana with a maximum temperature of 24°C, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south.

24
°C maximum temperature
6
°C minimum temperature
broken clouds
7
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
9
kph wind from S

Hamilton weather for Tuesday 21st April 2026

Expect broken clouds in Hamilton, Montana with a maximum temperature of 26°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south.

26
°C maximum temperature
7
°C minimum temperature
broken clouds
8
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
26
°C wind chill
14
kph wind from S

Hamilton weather for Wednesday 22nd April 2026

Expect isolated thunderstorms in Hamilton, Montana with a maximum temperature of 15°C, maximum UV of 5 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 96% chance of some rain and a gentle breeze of 13 kph from the west.

15
°C maximum temperature
5
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
5
UV index (Moderate)
96
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
13
kph wind from W

Hamilton weather for Thursday 23rd April 2026

Expect sunshine and showers in Hamilton, Montana with a maximum temperature of 8°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 86% chance of some rain and a gentle breeze of 17 kph from the north.