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.

Monday
19th Jan
5

-5

9

1
Tuesday
20th Jan
6

-3

0

1
Wednesday
21st Jan
5

-4

0

1
Thursday
22nd Jan
3

-4

6

1

5-day weather forecast updated at 04:06 on Saturday 17th January 2026 GMT

More about Hamilton

Hamilton by month

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

Recommended for Montana

Love Holidays sale: up to £600 off holidays

Sale

Save up to £600 on selected holidays in 2026/2027
Book discounted holidays with 'Sale' label
Discounts varies by destination & holiday type. T&Cs apply

Go to Love Holidays deal >>

Expires at 23:59 on Sunday 8th Feb 2026 · View all Love Holidays 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 Monday 19th January 2026

Expect clear skies in Hamilton, Montana with a maximum temperature of 5°C, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

5
°C maximum temperature
-5
°C minimum temperature
clear skies
9
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
3
°C wind chill
11
kph wind from S

Hamilton weather for Tuesday 20th January 2026

Expect broken clouds in Hamilton, Montana with a maximum temperature of 6°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

6
°C maximum temperature
-3
°C minimum temperature
broken clouds
0
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
3
°C wind chill
11
kph wind from S

Hamilton weather for Wednesday 21st 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
-4
°C minimum temperature
overcast skies
0
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
2
°C wind chill
9
kph wind from S

Hamilton weather for Thursday 22nd January 2026

Expect broken clouds in Hamilton, Montana with a maximum temperature of 3°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south.