Live Weather & Forecast

Weather in Hamilton

Montana, United States · Real-time conditions & 3-day outlook

Flag of United States
Sunny
11°C
Feels like 8°C
51°F / Feels 47°F
Sunny
Hamilton, Montana
🌞 Daytime
Updated: 2026-04-15 11:30
💧
Humidity
53%
💨
Wind
7.6 km/h SW
🌬️
Wind Gust
8.7 km/h
🌡️
Pressure
1005 mb
👁️
Visibility
10 km
☀️
UV Index
0.9 (Low)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
9%
💦
Dew Point
1.8°C
🌐
Wind Degree
218°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
147.8 μg/m³
NO₂
1.1 μg/m³
O₃
103 μg/m³
SO₂
0.8 μg/m³
PM 2.5
0.9 μg/m³
PM 10
1 μg/m³

Weather Alerts 3

Met · Moderate · Expected
Winter Weather Advisory issued April 14 at 11:53AM MDT until April 16 at 9:00AM MDT by NWS Missoula MT

* WHAT...Snow expected. There is a likelihood of moderate winter weather impacts. Total snow accumulations between 4 and 8 inches for Lolo and Lost Trail Passes, with 7 to 14 inches above 6,000 feet in the higher terrain. * WHERE...Highway 93 Sula to Lost Trail Pass and Lolo Pass. * WHEN...From 3 PM Wednesday to 9 AM MDT Thursday. * IMPACTS...For MODERATE winter weather impacts, expect disrupti...

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Outdoor recreationalists should be prepared for winter conditions. Snowfall could impact roads and cold temperatures may result in hypothermia.

Met · Moderate · Expected
Winter Weather Advisory issued April 14 at 11:53AM MDT until April 16 at 9:00AM MDT by NWS Missoula MT

* WHAT...Snow expected. There is a likelihood of minor to moderate winter weather impacts. Total snow accumulations up to two inches, with 6 to 14 inches above 6,000 feet in the Swan and Mission Mountains. * WHERE...Highway 200 Bonner to Greenough, I-90 East Missoula to Bearmouth, and Highway 83 Seeley Lake to Condon. * WHEN...From 6 PM Wednesday to 9 AM MDT Thursday. * IMPACTS...Winter traveli...

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

Met · Moderate · Expected
Winter Weather Advisory issued April 14 at 11:53AM MDT until April 16 at 9:00AM MDT by NWS Missoula MT

* WHAT...Snow expected. There is a likelihood of moderate winter weather impacts. Total snow accumulations of 1 to 3 inches, with 3 to 7 inches expected above 7,000 feet. Winds gusting as high as 35 mph. * WHERE...Highway 12 Garrison to Elliston, Georgetown Lake, MacDonald Pass, Butte, and Homestake Pass. * WHEN...From 6 PM Wednesday to 9 AM MDT Thursday. * IMPACTS...For MODERATE winter weather...

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Outdoor recreationalists should be prepared for winter conditions. Snowfall could impact roads and cold temperatures may result in hypothermia.

Today's Hourly Forecast

24-hour breakdown for Hamilton, Montana

12 AM
Patchy rain nearby
Patchy rain nearby
💧 57% 💨 5.4 km/h 🌧️ 71%
1 AM
Patchy rain nearby
Patchy rain nearby
💧 60% 💨 4 km/h 🌧️ 100%
2 AM
Patchy rain nearby
Patchy rain nearby
💧 65% 💨 3.6 km/h 🌧️ 100%
3 AM
Patchy rain nearby
Patchy rain nearby
💧 67% 💨 4 km/h 🌧️ 100%
4 AM
Patchy rain nearby
Patchy rain nearby
💧 67% 💨 3.6 km/h 🌧️ 67%
5 AM
Patchy rain nearby
Patchy rain nearby
💧 67% 💨 4.3 km/h 🌧️ 86%
6 AM
Patchy rain nearby
Patchy rain nearby
💧 70% 💨 5 km/h 🌧️ 71%
7 AM
Patchy rain nearby
Patchy rain nearby
💧 67% 💨 6.1 km/h 🌧️ 79%
8 AM
Patchy rain nearby
Patchy rain nearby
💧 70% 💨 6.1 km/h 🌧️ 60%
9 AM
Patchy rain nearby
Patchy rain nearby
💧 70% 💨 7.6 km/h 🌧️ 100%
10 AM
Patchy rain nearby
Patchy rain nearby
💧 61% 💨 8.3 km/h 🌧️ 100%
11 AM
Sunny
11°
Sunny
💧 53% 💨 7.6 km/h
12 PM
Patchy rain nearby
11°
Patchy rain nearby
💧 54% 💨 8.3 km/h 🌧️ 84%
1 PM
Patchy rain nearby
11°
Patchy rain nearby
💧 59% 💨 8.3 km/h 🌧️ 100%
2 PM
Patchy rain nearby
12°
Patchy rain nearby
💧 61% 💨 9.4 km/h 🌧️ 100%
3 PM
Patchy rain nearby
13°
Patchy rain nearby
💧 57% 💨 13 km/h 🌧️ 100%
4 PM
Patchy rain nearby
14°
Patchy rain nearby
💧 51% 💨 8.6 km/h 🌧️ 73%
5 PM
Patchy rain nearby
11°
Patchy rain nearby
💧 53% 💨 10.1 km/h 🌧️ 66%
6 PM
Patchy sleet nearby
Patchy sleet nearby
💧 70% 💨 12.2 km/h 🌧️ 100%
7 PM
Patchy rain nearby
Patchy rain nearby
💧 73% 💨 11.9 km/h 🌧️ 100%
8 PM
Patchy rain nearby
Patchy rain nearby
💧 64% 💨 4.3 km/h 🌧️ 100%
9 PM
Clear
Clear
💧 57% 💨 3.2 km/h
10 PM
Clear
Clear
💧 63% 💨 6.1 km/h
11 PM
Clear
-4°
Clear
💧 60% 💨 7.9 km/h

3-Day Forecast

Daily overview for Hamilton, Montana

Today
Patchy rain nearby
Patchy rain nearby
15° /
🌧️ 87% chance of rain
💧 Avg. humidity: 62%
💨 Max wind: 13 km/h
🌧️ Total precip: 2.42 mm
☀️ UV Index: 0.7
🌅 Sunrise: 06:50 AM
🌇 Sunset: 08:24 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Partly Cloudy
Partly Cloudy
/ -13°
🌧️ 0% chance of rain
💧 Avg. humidity: 72%
💨 Max wind: 17.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:48 AM
🌇 Sunset: 08:25 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Overcast
Overcast
/ -10°
🌧️ 0% chance of rain
💧 Avg. humidity: 74%
💨 Max wind: 13.7 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.3
🌅 Sunrise: 06:46 AM
🌇 Sunset: 08:27 PM
🌙 New Moon
🌑 Moon: 0% lit

Best Time to Visit Hamilton

Plan your trip to Hamilton, United States around the most favorable weather conditions.

Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
← Back to Hamilton 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Hamilton?
Current conditions in Hamilton: Sunny, temperature 11°C, humidity 53%.
What is the best time to visit Hamilton?
The best time to visit Hamilton is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Hamilton?
Hamilton is located at approximately 46.2° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Hamilton?
The wettest period in Hamilton is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Hamilton?
For visits to Hamilton during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Hamilton in?
Hamilton is located in United States, in the state of Montana.
What are the public holidays in Hamilton in 2026?
View the 2026 public holidays for Hamilton on our Holidays page.
What are the GPS coordinates used for the weather forecast in Hamilton?
The weather forecast for Hamilton uses coordinates 46.2472, -114.1555.