Ontario, NY Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Ontario, NY in one place.
A chance of rain showers before 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 69. Southwest wind 8 to 14 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Ontario, 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: Aug 23, 2026 5:31 PM EDT.
The active forecast window currently covers Aug 24 to Aug 29, 2026 for Ontario, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 24 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 5:31 PM EDT
- Forecast office
- BUF
- Source
- NOAA / NWS
Daily Outlook
This Week in Ontario
Thursday looks like the warmest upcoming period in Ontario at 83 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Monday at about 8 to 14 mph SW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 5:31 PM EDT
- Coverage
- 6 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
Showers and thunderstorms. Mostly cloudy, with a low around 57. West wind 9 to 13 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Rain showers. Mostly cloudy, with a high near 73. West wind 10 to 14 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 8pm. Mostly clear, with a low around 56. West wind 5 to 9 mph. Chance of precipitation is 20%.
Mostly sunny, with a high near 79. West wind around 5 mph.
Partly cloudy, with a low around 62. Southeast wind 3 to 7 mph.
A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
A slight chance of rain showers before 2pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 77.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 58.
Sunny, with a high near 74.
Partly cloudy, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 24
|
Showers And Thunderstorms Likely
|
69°F |
8 to 14 mph
SW
|
|
Monday Night
Aug 24
|
Showers And Thunderstorms
|
57°F |
9 to 13 mph
W
|
|
Tuesday
Aug 25
|
Rain Showers
|
73°F |
10 to 14 mph
W
|
|
Tuesday Night
Aug 25
|
Slight Chance Rain Showers then Mostly Clear
|
56°F |
5 to 9 mph
W
|
|
Wednesday
Aug 26
|
Mostly Sunny
|
79°F |
5 mph
W
|
|
Wednesday Night
Aug 26
|
Partly Cloudy
|
62°F |
3 to 7 mph
SE
|
|
Thursday
Aug 27
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
83°F |
6 to 9 mph
SW
|
|
Thursday Night
Aug 27
|
Chance Showers And Thunderstorms
|
63°F |
6 mph
SW
|
|
Friday
Aug 28
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
77°F |
6 to 10 mph
W
|
|
Friday Night
Aug 28
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
58°F |
5 to 9 mph
W
|
|
Saturday
Aug 29
|
Sunny
|
74°F |
7 mph
NW
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
56°F |
5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Ontario.
