High 69° · Low 47°
Up to 9% chance of rainPartly sunny. High near 69, with temperatures falling to around 65 in the afternoon. West northwest wind 2 to 12 mph, with gusts as high as 20 mph.
Amusement and water park
California's Great America weather
Santa Clara, CA
58° now
Today: Partly Sunny, high 69°, 9% chance of rain
Hourly and 7-day forecasts at California's Great America in Santa Clara, CA, plus its usual operating season and active weather alerts.
Usually open March to November
Dry park opens in March and runs select dates through Nov. 1 in 2026; South Bay Shores water park is summer-only.
From California's Great America homepage (Six Flags), checked . Dates change each year.
Current conditions
Current weather at California's Great America
Broken clouds
Observed at 8:09 AM local time
58°Feels like 56°
- Humidity
- 73%
- Wind
- 6 mph
- Sunrise
- 7:19 AM
- Sunset
- 6:25 PM
At a glance
Today and Tomorrow at California's Great America
High 69° · Low 50°
Up to 73% chance of rainPatchy fog between 8am and 10am, then a slight chance of rain showers. Mostly cloudy. High near 69, with temperatures falling to around 67 in the afternoon. North wind 0 to 6 mph. Chance of precipitation is 20%.
Hour by hour
California's Great America hourly forecast for the next 24 hours
- 51°Mostly Cloudy0% rain
- 55°Partly Sunny0% rain
- 59°Partly Sunny0% rain
- 63°Partly Sunny0% rain
- 65°Mostly Sunny0% rain
- 66°Sunny0% rain
- 68°Sunny0% rain
- 66°Mostly Sunny0% rain
- 66°Partly Sunny0% rain
- 65°Partly Sunny0% rain
- 62°Mostly Cloudy0% rain
- 60°Mostly Cloudy0% rain
- 58°Mostly Cloudy1% rain
- 57°Mostly Cloudy2% rain
- 56°Mostly Cloudy2% rain
- 55°Mostly Cloudy4% rain
- 53°Mostly Cloudy5% rain
- 52°Mostly Cloudy4% rain
- 51°Mostly Cloudy3% rain
- 49°Mostly Cloudy0% rain
- 49°Cloudy3% rain
- 48°Cloudy9% rain
- 48°Cloudy6% rain
- 48°Cloudy2% rain
Day by day
California's Great America 7-day forecast
- Partly SunnyUp to 9% rain69° / 47°
- Patchy Fog then Slight Chance Rain ShowersUp to 73% rain69° / 50°
- Rain ShowersUp to 75% rain68° / 49°
- Patchy FogUp to 23% rain67° / 47°
- Patchy Fog then SunnyUp to 1% rain70° / 46°
- Patchy Fog then SunnyUp to 17% rain72° / 48°
- Slight Chance Light RainUp to 20% rain71° / 47°
Forecast from the National Weather Service, updated 2:37 AM local time. Hourly values are for the forecast grid cell containing this location. Current conditions from OpenWeather.
Averages, not a forecast
California's Great America weather by month
In an average October, highs are near 76° and lows near 53°, with measurable precipitation on about 3 days.
July is usually the warmest month (average high 81°), and January the coldest (average low 42°). February has the most days with precipitation, and July the fewest.
| Month | Avg high | Avg low | Precip. days | Precip. |
|---|---|---|---|---|
| January | 60° | 42° | 9 | 2.8 in |
| February | 62° | 44° | 10 | 2.7 in |
| March | 66° | 46° | 9 | 2.1 in |
| April | 69° | 48° | 6 | 1.1 in |
| May | 74° | 52° | 3 | 0.4 in |
| June | 79° | 56° | 1 | 0.2 in |
| July | 81° | 58° | 0 | 0.0 in |
| August | 81° | 59° | 0 | 0.1 in |
| September | 81° | 57° | 1 | 0.1 in |
| October | 76° | 53° | 3 | 0.5 in |
| November | 66° | 46° | 7 | 1.3 in |
| December | 60° | 42° | 10 | 2.3 in |
NOAA 1991–2020 U.S. Climate Normals from the SAN JOSE, CA US station, 3 miles away. Precipitation days count days with at least 0.01 inch.
Confirm before you go
California's Great America location and park links
Check current hours, access, fees, closures, and local guidance with the destination itself.
- Type
- Amusement and water park
- City
- Santa Clara, CA
- Address
- 4701 Great America Pkwy
- Visitor information
- Visit California's Great America website