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Mendon, NY Weather Forecast

Monroe County, New York

7-day view
Conditions now · Thu, 8:30 AM EDT
55°FDewpoint 51°FClear

Measured at N2CJC · CWOP · 6.8 mi away · 6 minutes ago

Mendon, NY at Thu, 8:30 AM EDT: 55°F and clear, measured at N2CJC 6.8 mi away, 6 minutes ago. Rest of today: high 74°F, low 53°F, 39% 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
Active none for this pointClick to frame

No active alerts for this location.

Most serious first · click a row to find it on the map
What is happeningWritten from the numbers on this page

Dry for the moment, with rain moving in tonight

It is 58° with a dew point of 48°, which is dry for this time of year. The sky is clear.

The wind turns to the west-northwest around 1 AM. The first rain arrives between 9 PM and 10 PM. That leaves a usable window outdoors until about 9 PM, and it closes quickly after that.

Hour by hour
8 AMClear53°F0%
9 AMClear57°F0%
10 AMClear61°F0%
11 AMClear65°F0%
12 PMClear69°F0%
1 PMClear72°F0%
2 PMMostly sunny73°F0%
3 PMMostly sunny74°F0%
4 PMPartly cloudy73°F2%
5 PMPartly cloudy72°F2%
6 PMMostly cloudy70°F4%
7 PMMostly cloudy67°F5%

Next 36 hours

One wet spell, dry either side of it

The wet part of the window runs from about 9 PM to 2 AM, 3 hours of it, with the highest chance near 10 PM. Total accumulation over the window comes to about 0.09 in.

It tapers off after 2 AM. The overnight low settles near 57°. Tomorrow reaches 60°, 14° cooler than today.

Seven-day outlook

36–74°F across the week
TodayOct 29Scattered rain · 39% chance of rain53°F / 74°F
FriOct 30Scattered rain · 26% chance of rain44°F / 60°F
SatOct 31Partly cloudy · 0% chance of rain37°F / 57°F
SunNov 1Partly cloudy · 2% chance of rain40°F / 64°F
MonNov 2Mostly cloudy · 7% chance of rain46°F / 65°F
TueNov 3Mostly cloudy · 20% chance of rain48°F / 65°F
WedNov 4Scattered rain · 26% chance of rain52°F / 65°F
ThuNov 5Scattered rain · 33% chance of rain52°F / 63°F
FriNov 6Scattered rain · 37% chance of rain47°F / 58°F
SatNov 7Mostly cloudy · 18% chance of rain40°F / 56°F
SunNov 8Mostly cloudy · 14% chance of rain36°F / 55°F

The week runs between 37° and 74°, with today the warmest day of it. There is no real trend across it: one day looks much like the next. Today is the wettest day, peaking near 39%. 4 of the 7 days stay 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 Mendon forecast

Mendon sits at 42.9825°N, 77.5556°W in Monroe County, New York. 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
Monroe County
Coordinates
42.9825°N, 77.5556°W
Population
9,034 · 2023 estimate
Land area
39.474 sq mi

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

The nearest Doppler radar is KBUF (Buffalo, NY), 60 miles to the W. 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 Mendon its center is about 4,500 ft above ground. That is far enough out that the beam has climbed above the lowest few thousand feet. Storm structure aloft is visible; a shallow circulation near the ground may not be, and a warning here can arrive before anything looks dramatic on the radar picture.

The closest instrument actually measuring the air is KROC · Rochester Intl Arpt on the ASOS/AWOS network, 11 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 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 York observing network as of this build.

Forecasts near Mendon

Elsewhere in New York

New YorkBrookhavenIslipOyster BayBuffaloNorth HempsteadAll New York forecasts →

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