Port Ontario, NY Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Port Ontario, NY in one place.
A slight chance of rain showers. Cloudy, with a low around 68. Southeast wind around 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Port 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: Jun 10, 2026 6:32 AM EDT.
The active forecast window currently covers Jun 10 to Jun 16, 2026 for Port Ontario, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 10 to Jun 16, 2026
- Latest sync
- Jun 10, 2026 6:32 AM EDT
- Forecast office
- BUF
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Ontario
Friday looks like the warmest upcoming period in Port Ontario at 86 degrees F.
Sunday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Sunday at about 7 to 12 mph SW.
Precipitation is mentioned in 13 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 10, 2026 6:32 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- BUF
- Radar station
- KTYX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers before 11am, then showers and thunderstorms. Mostly cloudy, with a high near 83. South wind 1 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southwest wind 2 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Rain showers likely before 11am, then showers and thunderstorms likely between 11am and 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 83. West wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 2 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 2pm, then showers and thunderstorms. Mostly cloudy, with a high near 86. South wind 3 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms before 8pm. Partly cloudy, with a low around 58. West wind 2 to 8 mph. Chance of precipitation is 90%.
Sunny, with a high near 79. West wind 2 to 9 mph.
A slight chance of rain showers after 2am. Mostly clear, with a low around 59.
A slight chance of rain showers before 8am, then a chance of showers and thunderstorms. Partly sunny, with a high near 75. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.
A chance of rain showers. Partly sunny, with a high near 68. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
A chance of rain showers. Partly sunny, with a high near 69.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jun 10
|
Slight Chance Rain Showers
|
68°F |
7 mph
SE
|
|
Wednesday
Jun 10
|
Showers And Thunderstorms
|
83°F |
1 to 9 mph
S
|
|
Wednesday Night
Jun 10
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
64°F |
2 to 9 mph
SW
|
|
Thursday
Jun 11
|
Showers And Thunderstorms Likely
|
83°F |
5 mph
W
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms
|
67°F |
2 mph
S
|
|
Friday
Jun 12
|
Showers And Thunderstorms
|
86°F |
3 to 8 mph
S
|
|
Friday Night
Jun 12
|
Showers And Thunderstorms then Partly Cloudy
|
58°F |
2 to 8 mph
W
|
|
Saturday
Jun 13
|
Sunny
|
79°F |
2 to 9 mph
W
|
|
Saturday Night
Jun 13
|
Mostly Clear then Slight Chance Rain Showers
|
59°F |
2 to 7 mph
SW
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
75°F |
7 to 12 mph
SW
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms
|
52°F |
8 mph
W
|
|
Monday
Jun 15
|
Chance Rain Showers
|
68°F |
7 to 12 mph
W
|
|
Monday Night
Jun 15
|
Chance Rain Showers
|
53°F |
3 to 8 mph
S
|
|
Tuesday
Jun 16
|
Chance Rain Showers
|
69°F |
3 to 8 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Ontario.