Monroe, NJ Weather Forecast
Middlesex County, New Jersey
Seven-day outlook
39–70°F across the weekThe week runs between 39° and 70°, with tomorrow the warmest day of it. There is no real trend across it: one day looks much like the next. Every day in the outlook stays dry.
Forecasts come from the National Weather Service's own computer models, and current conditions from the nearest reporting weather station. Both are served through the weather API. A forecast is guidance, not a warning, and anything the Weather Service has actually issued is on the live map.
The written summaries on this page are generated from the forecast data above, not by a meteorologist. Each sentence is a reading of the same numbers you can see, and no forecaster has reviewed them.
About the Monroe forecast
Monroe sits at 40.3195°N, 74.4288°W in Middlesex County, New Jersey. The forecast above is drawn for that point from the National Weather Service's own computer models: a seven-day outlook, and a finer-grained one covering the next eighteen hours where it reaches, and the radar and alert panels show what the Weather Service has out over the area right now.
- County
- Middlesex County
- Coordinates
- 40.3195°N, 74.4288°W
- Population
- 48,568 · 2023 estimate
- Land area
- 41.938 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Monroe, and the forecast is for that location, not for every address inside the city limits, and a large city can have real weather differences from one side to the other.
How well can the network see Monroe?
The nearest Doppler radar is KDIX (Philadelphia, PA), 26 miles to the S. A WSR-88D's lowest routine scan sits half a degree above horizontal, and the earth curves away beneath it, so by the time that beam reaches Monroe its center is about 1,500 ft above ground. That is about as close as radar coverage gets in the United States: the lowest scan is still near the ground when it reaches Monroe, so low-level rotation and the leading edge of a gust front show up on it. Monroe is closer to its radar than 77% of US cities.
The closest instrument actually measuring the air is KBLM · Farmingdale/Monmouth Exec on the ASOS/AWOS network, 19 miles away. Far enough that "current conditions" for Monroe is an educated reading of somewhere else, worth knowing before you plan around a single temperature.
Beam height is the standard 4/3-earth approximation for the 0.5° scan and assumes normal refraction; it is where the center of the beam is, not its edges, and unusual temperature profiles bend it. Radar siting from the NWS WSR-88D network, station positions from the New Jersey observing network as of this build.
Forecasts near Monroe
- Jamesburg, NJ2 mi
- Cranbury, NJ5 mi
- Manalapan, NJ5 mi
- Spotswood, NJ5 mi
- Hightstown, NJ6 mi
- South Brunswick, NJ7 mi
- East Windsor, NJ7 mi
- Millstone, NJ7 mi
Elsewhere in New Jersey
NewarkJersey CityPatersonLakewoodElizabethEdisonAll New Jersey forecasts →