Three Mile Bay, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Three Mile Bay, a community in Jefferson County, New York.
Today
77°F
Sunny
Sunny, with a high near 77. Southwest wind 5 to 12 mph.
7-day forecast for Three Mile Bay
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Sunny | 5 to 12 mph SW | 0% |
| Tonight | 61°F | Mostly Clear | 2 to 7 mph S | 0% |
| Wednesday | 84°F | Sunny | 5 to 9 mph S | 0% |
| Wednesday Night | 68°F | Partly Cloudy then Chance Rain Showers | 1 to 6 mph S | 25% |
| Thursday | 83°F | Chance Showers And Thunderstorms | 6 to 9 mph SW | 36% |
| Thursday Night | 68°F | Chance Showers And Thunderstorms | 6 mph SW | 34% |
| Friday | 81°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 34% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 48% |
| Saturday | 81°F | Chance Showers And Thunderstorms | 2 to 10 mph SW | 48% |
| Saturday Night | 67°F | Slight Chance Rain Showers | 5 to 8 mph SW | 22% |
| Sunday | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 13 mph SW | 18% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 to 9 mph SW | 47% |
| Monday | 80°F | Chance Rain Showers | 8 to 13 mph SW | 42% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 47% |
Forecast source: National Weather Service (api.weather.gov) for Three Mile Bay (44.085, -76.197). Updated through the day.
Growing snapshot for Three Mile Bay
Last spring frost
May 11
First fall frost
Oct 1
Growing season
140 days
Hardiness zone
5a
More local growing data for Three Mile Bay: nearby ZIP 13622 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Adams
Adams Center
Alexandria Bay
Antwerp
Belleville
Black River
Brownville
Calcium
Cape Vincent
Carthage
Chaumont
Clayton
Deferiet
Depauville
Dexter
Ellisburg
Evans Mills
Felts Mills
Fishers Landing
Fort Drum
Glen Park
Great Bend
Henderson
Herrings
La Fargeville
Lorraine
Mannsville
Oxbow
Pamelia Center
Philadelphia
Climate data from the nearest NOAA station, Watertown Intl Ap, Ny (8.5 mi from Three Mile Bay). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.