Live Weather & Forecast
Weather in Sidney
Montana, United States · Real-time conditions & 3-day outlook
14°C
Feels like 13°C
57°F / Feels 55°F
Overcast
Sidney, Montana
🌞 Daytime
Updated: 2026-04-13 15:15
Humidity
59%
Wind
14.4 km/h E
Wind Gust
16.6 km/h
Pressure
1006 mb
Visibility
16 km
UV Index
0.4
(Low)
Precipitation
0 mm
Cloud Cover
100%
Dew Point
5.4°C
Wind Degree
85°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
169.8 μg/m³
NO₂
3.6 μg/m³
O₃
64 μg/m³
SO₂
1.1 μg/m³
PM 2.5
8.9 μg/m³
PM 10
9.5 μg/m³
Today's Hourly Forecast
24-hour breakdown for Sidney, Montana
12 AM
7°
Clear
1 AM
6°
Clear
2 AM
6°
Cloudy
3 AM
6°
Overcast
4 AM
6°
Patchy rain nearby
5 AM
6°
Patchy rain nearby
6 AM
6°
Overcast
7 AM
6°
Overcast
8 AM
6°
Overcast
9 AM
7°
Overcast
10 AM
8°
Overcast
11 AM
9°
Overcast
12 PM
10°
Overcast
1 PM
11°
Overcast
2 PM
12°
Overcast
3 PM
14°
Overcast
4 PM
14°
Partly Cloudy
5 PM
13°
Sunny
6 PM
12°
Patchy rain nearby
7 PM
11°
Patchy rain nearby
8 PM
10°
Clear
9 PM
10°
Clear
10 PM
9°
Patchy rain nearby
11 PM
8°
Patchy rain nearby
3-Day Forecast
Daily overview for Sidney, Montana
Today
Patchy rain nearby
14°
/
5°
🌧️ 85% chance of rain
💧 Avg. humidity: 74%
💨 Max wind: 20.9 km/h
🌧️ Total precip: 0.15 mm
☀️ UV Index: 0.6
🌅 Sunrise: 06:11 AM
🌇 Sunset: 07:44 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Cloudy
19°
/
5°
🌧️ 0% chance of rain
💧 Avg. humidity: 71%
💨 Max wind: 23.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.2
🌅 Sunrise: 06:09 AM
🌇 Sunset: 07:46 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Overcast
19°
/
5°
🌧️ 0% chance of rain
💧 Avg. humidity: 47%
💨 Max wind: 21.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.2
🌅 Sunrise: 06:07 AM
🌇 Sunset: 07:47 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Sidney
Plan your trip to Sidney, 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.
Frequently Asked Questions
What is the current weather in Sidney?
Current conditions in Sidney: Overcast, temperature 14°C, humidity 59%.
What is the best time to visit Sidney?
The best time to visit Sidney is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Sidney?
Sidney is located at approximately 47.7° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Sidney?
The wettest period in Sidney is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Sidney?
For visits to Sidney during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Sidney in?
Sidney is located in United States, in the state of Montana.
What are the public holidays in Sidney in 2026?
View the 2026 public holidays for Sidney on our Holidays page.
What are the GPS coordinates used for the weather forecast in Sidney?
The weather forecast for Sidney uses coordinates 47.7167, -104.156.