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Prospect, CT Weather Forecast

Naugatuck Valley Planning Region, Connecticut

7-day view
Conditions now · Sun, 6:43 PM EDT
69°FDewpoint 69°FRain likely

Measured at GW4410 · CWOP · 1.9 mi away · 3 minutes ago

Prospect, CT at Sun, 6:43 PM EDT: 69°F and rain likely, measured at GW4410 1.9 mi away, 3 minutes ago. Rest of today: high 74°F, low 67°F, 94% chance of rain. No active National Weather Service alerts for this location.

Current radarNational Weather Service radar · alerts refresh every minuteOpen live map →
Rain: light → heavyRadar mosaic © Iowa Environmental Mesonet / NWS · Basemap © OpenStreetMap contributors, © Protomaps
Hour by hourTemperatureChance of rain
12 PMRain likely70°F94%
1 PMRain likely71°F82%
2 PMRain likely72°F66%
3 PMScattered rain73°F32%
4 PMMostly cloudy74°F10%
5 PMMostly cloudy74°F5%
6 PMPartly cloudy74°F1%
7 PMMostly sunny71°F0%
8 PMMostly sunny69°F0%
9 PMPartly cloudy68°F1%
10 PMPartly cloudy68°F1%
11 PMPartly cloudy67°F0%

Seven-day outlook

49–76°F across the week
TodaySep 13Rain likely · 94% chance of rain67°F / 74°F
MonSep 14Mostly sunny · 21% chance of rain55°F / 69°F
TueSep 15Clear · 0% chance of rain49°F / 68°F
WedSep 16Mostly sunny · 0% chance of rain53°F / 74°F
ThuSep 17Partly cloudy · 8% chance of rain60°F / 76°F
FriSep 18Partly cloudy · 18% chance of rain62°F / 74°F
SatSep 19Partly cloudy · 23% chance of rain57°F / 70°F
SunSep 20Scattered rain · 31% chance of rain57°F / 67°F

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.

About the Prospect forecast

Prospect sits at 41.4992°N, 72.9756°W in Naugatuck Valley Planning Region, Connecticut. 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
Naugatuck Valley Planning Region
Coordinates
41.4992°N, 72.9756°W
Population
9,479 · 2023 estimate
Land area
14.201 sq mi

Place data from the US Census Bureau. Coordinates are the Census internal point for Prospect, 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 Prospect?

The nearest Doppler radar is KOKX (New York City, NY), 44 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 Prospect its centre is about 3,000 ft above ground. That is comfortably inside the useful range. The lowest scan passes low enough over Prospect to show rotation in the part of a storm where tornadoes actually form. Prospect is closer to its radar than 50% of US cities.

The closest instrument actually measuring the air is KMMK · Meriden/Markham Muni on the ASOS/AWOS network, 7.7 miles away. Near enough to be representative on most days, though a summer thunderstorm can soak one and miss the other entirely.

Beam height is the standard 4/3-earth approximation for the 0.5° scan and assumes normal refraction; it is where the centre 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 Connecticut observing network as of this build.

Forecasts near Prospect

Elsewhere in Connecticut

Bridgeport · Stamford · New Haven · Hartford · Waterbury · Norwalk · All Connecticut forecasts →