High 86° · Low 59°
Up to 60% chance of rainMostly sunny, with a high near 86. Southwest wind around 10 mph. New rainfall amounts less than a tenth of an inch possible.
Theme park
Six Flags Great Adventure weather
Jackson Township, NJ
85° now
Today: Mostly Sunny, high 86°, 60% chance of rain
Current observed weather and the available forecast for Six Flags Great Adventure. Conditions can change quickly; check local alerts before travel.
Usually open March to January
The official hours feed shows the 2026 season starting Mar 27 and running through Holiday in the Park to Jan 3, 2027, on select days in spring, fall and December.
From Six Flags Great Adventure Park Hours (Six Flags official operating-hours feed behind the park-hours calendar (fims.prod.six-mt.com), scanned day by day Oct 2025 to Jan 2027), checked . Dates change each year.
Current conditions
Current weather at Six Flags Great Adventure
Overcast clouds
Observed at 2:39 PM local time
85°Feels like 88°
- Humidity
- 56%
- Wind
- 13 mph
- Sunrise
- 6:54 AM
- Sunset
- 6:39 PM
At a glance
Today and Tomorrow at Six Flags Great Adventure
High 71° · Low 56°
Up to 7% chance of rainPartly sunny, with a high near 71. Northeast wind 5 to 10 mph.
Hour by hour
Six Flags Great Adventure hourly forecast for the next 24 hours
- 84°Mostly Sunny2% rain
- 85°Partly Sunny2% rain
- 83°Partly Sunny3% rain
- 80°Slight Chance Rain Showers21% rain
- 77°Chance Showers And Thunderstorms49% rain
- 75°Showers And Thunderstorms Likely56% rain
- 73°Showers And Thunderstorms Likely60% rain
- 71°Showers And Thunderstorms Likely59% rain
- 69°Chance Rain Showers43% rain
- 68°Chance Rain Showers34% rain
- 66°Chance Rain Showers25% rain
- 64°Slight Chance Rain Showers16% rain
- 63°Cloudy14% rain
- 61°Mostly Cloudy12% rain
- 61°Cloudy10% rain
- 60°Mostly Cloudy7% rain
- 59°Mostly Cloudy5% rain
- 60°Mostly Cloudy2% rain
- 62°Mostly Cloudy2% rain
- 65°Partly Sunny1% rain
- 67°Partly Sunny1% rain
- 68°Mostly Sunny1% rain
- 70°Mostly Sunny1% rain
- 70°Mostly Sunny0% rain
Day by day
Six Flags Great Adventure 7-day forecast
- Mostly SunnyUp to 60% rain86° / 59°
- Partly SunnyUp to 7% rain71° / 56°
- Rain Showers LikelyUp to 58% rain66° / 57°
- Mostly SunnyUp to 5% rain70° / 45°
- SunnyUp to 0% rain60° / 42°
- SunnyUp to 0% rain63° / 46°
- SunnyUp to 2% rain68° / 52°
Forecast from the National Weather Service, updated 12:32 PM local time. Hourly values are for the forecast grid cell containing this location. Current conditions from OpenWeather.
Averages, not a forecast
Six Flags Great Adventure weather by month
In an average October, highs are near 66° and lows near 42°, with measurable precipitation on about 10 days.
July is usually the warmest month (average high 87°), and January the coldest (average low 21°). May has the most days with precipitation, and September the fewest.
| Month | Avg high | Avg low | Precip. days | Precip. |
|---|---|---|---|---|
| January | 41° | 21° | 11 | 3.5 in |
| February | 43° | 23° | 9 | 2.6 in |
| March | 51° | 30° | 11 | 4.3 in |
| April | 63° | 39° | 12 | 3.7 in |
| May | 73° | 48° | 12 | 4.1 in |
| June | 82° | 58° | 12 | 4.6 in |
| July | 87° | 63° | 11 | 4.8 in |
| August | 85° | 61° | 10 | 4.3 in |
| September | 78° | 54° | 9 | 4.2 in |
| October | 66° | 42° | 10 | 4.0 in |
| November | 55° | 33° | 9 | 3.3 in |
| December | 46° | 27° | 11 | 4.2 in |
NOAA 1991–2020 U.S. Climate Normals from the HIGHTSTOWN 2 W, NJ US station, 11 miles away. Precipitation days count days with at least 0.01 inch.
Confirm before you go
Six Flags Great Adventure location and park links
Check current hours, access, fees, closures, and local guidance with the destination itself.
- Type
- Theme park
- City
- Jackson Township, NJ
- Address
- 1 Six Flags Blvd
- Visitor information
- Visit Six Flags Great Adventure website