Hercules, CA Weather Forecast
Local 7-day forecast
Chance Rain Showers then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Hercules, CA in one place.
A chance of rain showers before 8am. Mostly sunny. High near 68, with temperatures falling to around 66 in the afternoon. Southeast wind 3 to 12 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Hercules, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 27, 2026 7:17 PM PDT.
The active forecast window currently covers May 28 to Jun 2, 2026 for Hercules, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 28 to Jun 2, 2026
- Latest sync
- May 27, 2026 7:17 PM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Hercules
Monday looks like the warmest upcoming period in Hercules at 78 degrees F.
Friday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Thursday at about 3 to 12 mph SE.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- May 27, 2026 7:17 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- MTR
- Radar station
- KDAX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 53. Southwest wind 7 to 10 mph.
Mostly sunny, with a high near 65. Southwest wind 7 to 10 mph.
Partly cloudy, with a low around 52.
Sunny, with a high near 71.
Clear, with a low around 52.
Sunny, with a high near 77.
Mostly clear, with a low around 53.
Sunny, with a high near 78.
Mostly clear, with a low around 54.
Mostly sunny, with a high near 75.
Partly cloudy, with a low around 54.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
May 28
|
Chance Rain Showers then Mostly Sunny
|
68°F |
3 to 12 mph
SE
|
|
Thursday Night
May 28
|
Mostly Cloudy
|
53°F |
7 to 10 mph
SW
|
|
Friday
May 29
|
Mostly Sunny
|
65°F |
7 to 10 mph
SW
|
|
Friday Night
May 29
|
Partly Cloudy
|
52°F |
6 to 10 mph
SW
|
|
Saturday
May 30
|
Sunny
|
71°F |
5 to 10 mph
SW
|
|
Saturday Night
May 30
|
Clear
|
52°F |
5 to 10 mph
SW
|
|
Sunday
May 31
|
Sunny
|
77°F |
3 to 9 mph
SW
|
|
Sunday Night
May 31
|
Mostly Clear
|
53°F |
6 to 9 mph
SW
|
|
Monday
Jun 1
|
Sunny
|
78°F |
3 to 9 mph
SSW
|
|
Monday Night
Jun 1
|
Mostly Clear
|
54°F |
6 to 9 mph
SW
|
|
Tuesday
Jun 2
|
Mostly Sunny
|
75°F |
6 to 9 mph
SW
|
|
Tuesday Night
Jun 2
|
Partly Cloudy
|
54°F |
9 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Hercules.
