Grafton, NY Weather Forecast
Local 7-day forecast
Areas Of Smoke then Smoke
Track current conditions, temperature changes, wind, and the full daily outlook for Grafton, NY in one place.
Areas of smoke between 8am and noon, then smoke and a chance of rain showers between noon and 2pm, then smoke and showers and thunderstorms between 2pm and 5pm, then areas of smoke and a chance of showers and thunderstorms. Partly sunny, with a high near 85. South wind 3 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Grafton, NY is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 10:39 AM EDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Grafton, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 10:39 AM EDT
- Forecast office
- ALY
- Source
- NOAA / NWS
Daily Outlook
This Week in Grafton
Saturday looks like the warmest upcoming period in Grafton at 85 degrees F.
Sunday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Tuesday at about 9 to 14 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 10:39 AM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- ALY
- Radar station
- KENX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms before 2am. Mostly cloudy, with a low around 63. Southwest wind 6 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Mostly sunny, with a high near 78. Northwest wind around 13 mph, with gusts as high as 23 mph. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 56.
Mostly sunny, with a high near 83.
Mostly cloudy, with a low around 62.
A chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 80%.
Rain showers likely before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Sunny, with a high near 80.
Mostly clear, with a low around 57.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Areas Of Smoke then Smoke
|
85°F |
3 to 13 mph
S
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms
|
63°F |
6 to 12 mph
SW
|
|
Sunday
Jul 19
|
Mostly Sunny
|
78°F |
13 mph
NW
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
56°F |
2 to 12 mph
W
|
|
Monday
Jul 20
|
Mostly Sunny
|
83°F |
1 to 5 mph
W
|
|
Monday Night
Jul 20
|
Mostly Cloudy
|
62°F |
3 to 9 mph
S
|
|
Tuesday
Jul 21
|
Showers And Thunderstorms Likely
|
83°F |
9 to 14 mph
S
|
|
Tuesday Night
Jul 21
|
Showers And Thunderstorms
|
63°F |
6 to 12 mph
S
|
|
Wednesday
Jul 22
|
Rain Showers Likely
|
81°F |
6 to 13 mph
W
|
|
Wednesday Night
Jul 22
|
Chance Showers And Thunderstorms then Partly Cloudy
|
58°F |
5 to 10 mph
W
|
|
Thursday
Jul 23
|
Sunny
|
80°F |
7 mph
NW
|
|
Thursday Night
Jul 23
|
Mostly Clear
|
57°F |
1 to 6 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grafton.
