Williamsville, NY Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Williamsville, NY in one place.
A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 11am, then showers and thunderstorms. Mostly cloudy, with a high near 81. Southwest wind 9 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Williamsville, 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 1:02 PM EDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Williamsville, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 1:02 PM EDT
- Forecast office
- BUF
- Source
- NOAA / NWS
Daily Outlook
This Week in Williamsville
Saturday looks like the warmest upcoming period in Williamsville at 81 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Saturday at about 9 to 17 mph SW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 1:02 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 before 2am. Mostly cloudy, with a low around 61. Northwest wind 5 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunny, with a high near 76. Northwest wind around 7 mph.
Mostly clear, with a low around 59. West wind around 5 mph.
Mostly sunny, with a high near 81. South wind 3 to 7 mph.
A chance of rain showers after 8pm. Mostly cloudy, with a low around 66. South wind 3 to 12 mph. Chance of precipitation is 50%.
A chance of rain showers before 8am, then showers and thunderstorms. Mostly cloudy, with a high near 81. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 80%.
A chance of rain showers. Mostly sunny, with a high near 74. Chance of precipitation is 30%.
A chance of rain showers before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Sunny, with a high near 76.
Mostly clear, with a low around 58.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Showers And Thunderstorms
|
81°F |
9 to 17 mph
SW
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms
|
61°F |
5 to 13 mph
NW
|
|
Sunday
Jul 19
|
Sunny
|
76°F |
7 mph
NW
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
59°F |
5 mph
W
|
|
Monday
Jul 20
|
Mostly Sunny
|
81°F |
3 to 7 mph
S
|
|
Monday Night
Jul 20
|
Chance Rain Showers
|
66°F |
3 to 12 mph
S
|
|
Tuesday
Jul 21
|
Showers And Thunderstorms
|
81°F |
13 to 16 mph
SW
|
|
Tuesday Night
Jul 21
|
Showers And Thunderstorms
|
61°F |
7 to 12 mph
W
|
|
Wednesday
Jul 22
|
Chance Rain Showers
|
74°F |
9 to 13 mph
W
|
|
Wednesday Night
Jul 22
|
Chance Rain Showers then Partly Cloudy
|
58°F |
3 to 10 mph
W
|
|
Thursday
Jul 23
|
Sunny
|
76°F |
3 to 7 mph
W
|
|
Thursday Night
Jul 23
|
Mostly Clear
|
58°F |
2 to 6 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Williamsville.
