Belfast, NY Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Belfast, NY in one place.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Belfast, 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 7:32 AM EDT.
The active forecast window currently covers Apr 15 to Apr 21, 2026 for Belfast, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 7:32 AM EDT
- Forecast office
- BUF
- Source
- NOAA / NWS
Daily Outlook
This Week in Belfast
Saturday looks like the warmest upcoming period in Belfast at 78 degrees F.
Sunday Night is the coolest period ahead with temperatures near 26 degrees F.
The strongest winds are forecast for Wednesday at about 6 to 14 mph SW.
Precipitation is mentioned in 13 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 7:32 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
Showers and thunderstorms before 7am, then patchy fog and showers and thunderstorms between 7am and 9am, then a chance of showers and thunderstorms between 9am and 5pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 77. Southwest wind 6 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms before 11pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 60. Southwest wind 3 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
A chance of rain showers before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 76. Southwest wind 5 to 14 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a low around 56. Southwest wind 2 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
A chance of rain showers. Partly sunny, with a high near 67. Northwest wind 3 to 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 8pm. Partly cloudy, with a low around 49. East wind around 3 mph.
Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 78. South wind 2 to 9 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.
A chance of rain showers before 5pm, then a chance of snow showers. Mostly cloudy, with a high near 53. Chance of precipitation is 50%.
A chance of snow showers. Mostly cloudy, with a low around 26. Chance of precipitation is 50%.
A slight chance of snow showers. Partly sunny, with a high near 42.
A slight chance of snow showers before 8pm. Partly cloudy, with a low around 26.
Mostly sunny, with a high near 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Apr 15
|
Chance Showers And Thunderstorms
|
57°F |
5 mph
SW
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms then Chance Showers And Thunderstorms
|
77°F |
6 to 14 mph
SW
|
|
Wednesday Night
Apr 15
|
Showers And Thunderstorms
|
60°F |
3 to 7 mph
SW
|
|
Thursday
Apr 16
|
Showers And Thunderstorms Likely
|
76°F |
5 to 14 mph
SW
|
|
Thursday Night
Apr 16
|
Showers And Thunderstorms Likely
|
56°F |
2 to 9 mph
SW
|
|
Friday
Apr 17
|
Chance Rain Showers
|
67°F |
3 to 7 mph
NW
|
|
Friday Night
Apr 17
|
Slight Chance Rain Showers then Partly Cloudy
|
49°F |
3 mph
E
|
|
Saturday
Apr 18
|
Partly Sunny then Showers And Thunderstorms Likely
|
78°F |
2 to 9 mph
S
|
|
Saturday Night
Apr 18
|
Showers And Thunderstorms Likely
|
40°F |
7 mph
SW
|
|
Sunday
Apr 19
|
Chance Rain Showers then Chance Snow Showers
|
53°F |
6 to 12 mph
W
|
|
Sunday Night
Apr 19
|
Chance Snow Showers
|
26°F |
6 to 10 mph
W
|
|
Monday
Apr 20
|
Slight Chance Snow Showers
|
42°F |
8 to 13 mph
NW
|
|
Monday Night
Apr 20
|
Slight Chance Snow Showers then Partly Cloudy
|
26°F |
2 to 8 mph
W
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
60°F |
2 to 8 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Belfast.
