Ontario County, NY Weather Forecast
County weather hub
Sunny
Compare major city weather across Ontario County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 70. West wind 9 to 14 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
- May 31 to Jun 6, 2026
- Latest sync
- May 31, 2026 9:59 AM EDT
- Forecast office
- BUF
- Source
- NOAA / NWS
Daily Outlook
This Week in Ontario County
Friday looks like the warmest upcoming period in Ontario County at 81 degrees F.
Monday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Today at about 9 to 14 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- May 31, 2026 9:59 AM EDT
- Coverage
- 7 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
Partly cloudy, with a low around 49. West wind 3 to 12 mph.
Sunny, with a high near 67. Northwest wind 3 to 10 mph.
Mostly clear, with a low around 48. Northwest wind 1 to 7 mph.
Sunny, with a high near 70. Northwest wind 2 to 10 mph.
Partly cloudy, with a low around 51. West wind 2 to 6 mph.
Sunny, with a high near 74. Northwest wind 3 to 8 mph.
Mostly clear, with a low around 54. West wind 2 to 6 mph.
Sunny, with a high near 79.
Partly cloudy, with a low around 59.
Mostly sunny, with a high near 81.
A slight chance of rain showers after 8pm. Mostly cloudy, with a low around 61.
A slight chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
May 31
|
Sunny
|
70°F |
9 to 14 mph
W
|
|
Tonight
May 31
|
Partly Cloudy
|
49°F |
3 to 12 mph
W
|
|
Monday
Jun 1
|
Sunny
|
67°F |
3 to 10 mph
NW
|
|
Monday Night
Jun 1
|
Mostly Clear
|
48°F |
1 to 7 mph
NW
|
|
Tuesday
Jun 2
|
Sunny
|
70°F |
2 to 10 mph
NW
|
|
Tuesday Night
Jun 2
|
Partly Cloudy
|
51°F |
2 to 6 mph
W
|
|
Wednesday
Jun 3
|
Sunny
|
74°F |
3 to 8 mph
NW
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
54°F |
2 to 6 mph
W
|
|
Thursday
Jun 4
|
Sunny
|
79°F |
5 to 8 mph
W
|
|
Thursday Night
Jun 4
|
Partly Cloudy
|
59°F |
7 mph
W
|
|
Friday
Jun 5
|
Mostly Sunny
|
81°F |
7 to 10 mph
W
|
|
Friday Night
Jun 5
|
Slight Chance Rain Showers
|
61°F |
8 mph
W
|
|
Saturday
Jun 6
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
80°F |
9 mph
W
|
|
Saturday Night
Jun 6
|
Chance Showers And Thunderstorms
|
62°F |
7 mph
W
|
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.
