Williamsville, NY Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Williamsville, NY in one place.
A slight chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 72. South wind 7 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter 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: Apr 15, 2026 10:23 PM EDT.
The active forecast window currently covers Apr 18 to Apr 22, 2026 for Williamsville, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 18 to Apr 22, 2026
- Latest sync
- Apr 15, 2026 10:23 PM EDT
- Forecast office
- BUF
- Source
- NOAA / NWS
Daily Outlook
This Week in Williamsville
Saturday looks like the warmest upcoming period in Williamsville at 72 degrees F.
Sunday Night is the coolest period ahead with temperatures near 29 degrees F.
The strongest winds are forecast for Saturday at about 7 to 20 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 10:23 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
Showers and thunderstorms likely. Mostly cloudy, with a low around 39. Southwest wind 12 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 70%.
A chance of rain showers before 2pm, then a chance of snow showers. Mostly cloudy, with a high near 47. West wind 12 to 17 mph. Chance of precipitation is 50%.
A chance of snow showers before 2am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Partly sunny, with a high near 43.
Partly cloudy, with a low around 31.
A slight chance of rain showers after 2pm. Mostly sunny, with a high near 56.
A chance of rain showers. Mostly cloudy, with a low around 40. Chance of precipitation is 30%.
A slight chance of rain showers. Partly sunny, with a high near 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 18
|
Showers And Thunderstorms Likely
|
72°F |
7 to 20 mph
S
|
|
Saturday Night
Apr 18
|
Showers And Thunderstorms Likely
|
39°F |
12 to 17 mph
SW
|
|
Sunday
Apr 19
|
Chance Rain Showers then Chance Snow Showers
|
47°F |
12 to 17 mph
W
|
|
Sunday Night
Apr 19
|
Chance Snow Showers
|
29°F |
10 to 15 mph
W
|
|
Monday
Apr 20
|
Partly Sunny
|
43°F |
13 mph
NW
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
31°F |
7 to 12 mph
SW
|
|
Tuesday
Apr 21
|
Mostly Sunny then Slight Chance Rain Showers
|
56°F |
8 to 15 mph
SW
|
|
Tuesday Night
Apr 21
|
Chance Rain Showers
|
40°F |
8 to 13 mph
SW
|
|
Wednesday
Apr 22
|
Slight Chance Rain Showers
|
56°F |
8 to 13 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Williamsville.
