Ontario County, NY Weather Forecast
County weather hub
Partly Sunny
Compare major city weather across Ontario County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Partly sunny, with a high near 58. Northeast wind around 7 mph.
County Weather Overview
This county weather page brings together forecast coverage for Ontario County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 6 of 6 mapped cities in Ontario County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 15 to Oct 19, 2026
- Latest sync
- Oct 13, 2026 2:11 PM EDT
- Forecast office
- BUF
- Source
- NOAA / NWS
Daily Outlook
This Week in Ontario County
Monday looks like the warmest upcoming period in Ontario County at 63 degrees F.
Saturday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Friday Night at about 21 mph NW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 2:11 PM EDT
- Coverage
- 5 days
- Time zone
- America/New_York
- Forecast office
- BUF
- Radar station
- KBUF
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Rain showers after 8pm. Mostly cloudy, with a low around 50. Southeast wind 6 to 14 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Rain showers before 8am, then showers and thunderstorms. Cloudy, with a high near 61. Southwest wind 14 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%.
Rain showers likely before 2am, then a chance of rain and snow showers. Mostly cloudy, with a low around 35. Northwest wind around 21 mph. Chance of precipitation is 70%.
A chance of rain and snow showers before 8am. Mostly sunny, with a high near 43. Chance of precipitation is 40%.
Mostly clear, with a low around 34.
Sunny, with a high near 58.
Mostly clear, with a low around 42.
Mostly sunny, with a high near 63.
Mostly cloudy, with a low around 46.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 15
|
Partly Sunny
|
58°F |
7 mph
NE
|
|
Thursday Night
Oct 15
|
Rain Showers
|
50°F |
6 to 14 mph
SE
|
|
Friday
Oct 16
|
Showers And Thunderstorms
|
61°F |
14 to 18 mph
SW
|
|
Friday Night
Oct 16
|
Rain Showers Likely
|
35°F |
21 mph
NW
|
|
Saturday
Oct 17
|
Chance Rain And Snow Showers then Mostly Sunny
|
43°F |
16 to 20 mph
NW
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
34°F |
7 to 14 mph
W
|
|
Sunday
Oct 18
|
Sunny
|
58°F |
7 to 10 mph
SW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
42°F |
7 to 10 mph
SW
|
|
Monday
Oct 19
|
Mostly Sunny
|
63°F |
10 mph
SW
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
46°F |
8 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Ontario County.
Coverage
Forecast coverage currently spans 6 of 6 mapped cities in Ontario County.
Largest mapped city population in this region: 11,373.
