Live Weather & Forecast
Weather in Hyannis
Massachusetts, United States · Real-time conditions & 3-day outlook
9°C
Feels like 9°C
49°F / Feels 47°F
Sunny
Hyannis, Massachusetts
🌞 Daytime
Updated: 2026-04-12 13:30
Humidity
48%
Wind
6.8 km/h SE
Wind Gust
8.2 km/h
Pressure
1032 mb
Visibility
16 km
UV Index
6.3
(High)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
-2.2°C
Wind Degree
142°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
171.9 μg/m³
NO₂
3.4 μg/m³
O₃
109 μg/m³
SO₂
1.9 μg/m³
PM 2.5
8.2 μg/m³
PM 10
10.1 μg/m³
Today's Hourly Forecast
24-hour breakdown for Hyannis, Massachusetts
12 AM
5°
Clear
1 AM
5°
Clear
2 AM
4°
Clear
3 AM
3°
Clear
4 AM
3°
Clear
5 AM
2°
Clear
6 AM
2°
Clear
7 AM
4°
Sunny
8 AM
6°
Sunny
9 AM
7°
Sunny
10 AM
9°
Sunny
11 AM
10°
Sunny
12 PM
12°
Sunny
1 PM
9°
Sunny
2 PM
13°
Sunny
3 PM
12°
Sunny
4 PM
12°
Sunny
5 PM
10°
Sunny
6 PM
9°
Overcast
7 PM
8°
Overcast
8 PM
7°
Overcast
9 PM
7°
Overcast
10 PM
7°
Partly Cloudy
11 PM
7°
Overcast
3-Day Forecast
Daily overview for Hyannis, Massachusetts
Today
Sunny
13°
/
2°
🌧️ 0% chance of rain
💧 Avg. humidity: 58%
💨 Max wind: 22.7 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:06 AM
🌇 Sunset: 07:19 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Overcast
10°
/
6°
🌧️ 0% chance of rain
💧 Avg. humidity: 90%
💨 Max wind: 43.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:04 AM
🌇 Sunset: 07:20 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Overcast
18°
/
10°
🌧️ 0% chance of rain
💧 Avg. humidity: 91%
💨 Max wind: 23.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:03 AM
🌇 Sunset: 07:21 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Hyannis
Plan your trip to Hyannis, 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 Hyannis?
Current conditions in Hyannis: Sunny, temperature 9°C, humidity 48%.
What is the best time to visit Hyannis?
The best time to visit Hyannis is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Hyannis?
Hyannis is located at approximately 41.7° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Hyannis?
The wettest period in Hyannis is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Hyannis?
For visits to Hyannis during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Hyannis in?
Hyannis is located in United States, in the state of Massachusetts.
What are the public holidays in Hyannis in 2026?
View the 2026 public holidays for Hyannis on our Holidays page.
What are the GPS coordinates used for the weather forecast in Hyannis?
The weather forecast for Hyannis uses coordinates 41.6535, -70.2823.