Live Weather & Forecast
Weather in Hercules
California, United States · Real-time conditions & 3-day outlook
12°C
Feels like 12°C
53°F / Feels 54°F
Overcast
Hercules, California
🌙 Nighttime
Updated: 2026-04-13 00:00
Humidity
83%
Wind
3.6 km/h WSW
Wind Gust
4.8 km/h
Pressure
1017 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
100%
Dew Point
6°C
Wind Degree
236°
Air Quality Index
US EPA: Good
UK DEFRA: Low (2)
CO
200.9 μg/m³
NO₂
17.5 μg/m³
O₃
24 μg/m³
SO₂
3 μg/m³
PM 2.5
15 μg/m³
PM 10
17.5 μg/m³
Today's Hourly Forecast
24-hour breakdown for Hercules, California
12 AM
9°
Clear
1 AM
12°
Overcast
2 AM
8°
Clear
3 AM
8°
Clear
4 AM
8°
Clear
5 AM
8°
Clear
6 AM
7°
Clear
7 AM
8°
Sunny
8 AM
9°
Mist
9 AM
11°
Partly Cloudy
10 AM
11°
Partly Cloudy
11 AM
12°
Partly Cloudy
12 PM
13°
Sunny
1 PM
14°
Sunny
2 PM
15°
Sunny
3 PM
15°
Sunny
4 PM
16°
Sunny
5 PM
17°
Sunny
6 PM
17°
Sunny
7 PM
15°
Sunny
8 PM
13°
Clear
9 PM
12°
Clear
10 PM
12°
Clear
11 PM
11°
Clear
3-Day Forecast
Daily overview for Hercules, California
Today
Sunny
18°
/
7°
🌧️ 0% chance of rain
💧 Avg. humidity: 79%
💨 Max wind: 16.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:36 AM
🌇 Sunset: 07:44 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Cloudy
14°
/
8°
🌧️ 0% chance of rain
💧 Avg. humidity: 83%
💨 Max wind: 16.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:35 AM
🌇 Sunset: 07:45 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Partly Cloudy
15°
/
8°
🌧️ 0% chance of rain
💧 Avg. humidity: 82%
💨 Max wind: 22.7 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:33 AM
🌇 Sunset: 07:45 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Hercules
Plan your trip to Hercules, 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 Hercules?
Current conditions in Hercules: Overcast, temperature 12°C, humidity 83%.
What is the best time to visit Hercules?
The best time to visit Hercules is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Hercules?
Hercules is located at approximately 38° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Hercules?
The wettest period in Hercules is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Hercules?
For visits to Hercules during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Hercules in?
Hercules is located in United States, in the state of California.
What are the public holidays in Hercules in 2026?
View the 2026 public holidays for Hercules on our Holidays page.
What are the GPS coordinates used for the weather forecast in Hercules?
The weather forecast for Hercules uses coordinates 38.0171, -122.2886.