Belfast, PA Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Belfast, PA in one place.
Partly sunny, with a high near 52. North wind 15 to 20 mph, with gusts as high as 40 mph.
Local Weather Overview
This forecast page for Belfast, PA 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: Oct 16, 2026 10:10 PM EDT.
The active forecast window currently covers Oct 17 to Oct 23, 2026 for Belfast, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 17 to Oct 23, 2026
- Latest sync
- Oct 16, 2026 10:10 PM EDT
- Forecast office
- PHI
- Source
- NOAA / NWS
Daily Outlook
This Week in Belfast
Tuesday looks like the warmest upcoming period in Belfast at 66 degrees F.
Saturday Night is the coolest period ahead with temperatures near 32 degrees F.
The strongest winds are forecast for Saturday at about 15 to 20 mph N.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 16, 2026 10:10 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- PHI
- Radar station
- KDIX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Widespread frost after 4am. Clear, with a low around 32. North wind 5 to 15 mph, with gusts as high as 25 mph.
Widespread frost before 9am. Sunny, with a high near 57. Northeast wind 0 to 5 mph.
Mostly clear, with a low around 35. East wind 0 to 5 mph.
Areas of frost before 8am. Mostly sunny, with a high near 60.
Mostly cloudy, with a low around 41.
Mostly sunny, with a high near 66.
Partly cloudy, with a low around 45.
Sunny, with a high near 65.
A slight chance of rain showers after 2am. Mostly clear, with a low around 43.
A slight chance of rain showers. Mostly sunny, with a high near 62.
A slight chance of rain showers before 2am. Partly cloudy, with a low around 44.
Mostly sunny, with a high near 66.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Oct 17
|
Partly Sunny
|
52°F |
15 to 20 mph
N
|
|
Saturday Night
Oct 17
|
Clear then Widespread Frost
|
32°F |
5 to 15 mph
N
|
|
Sunday
Oct 18
|
Widespread Frost then Sunny
|
57°F |
0 to 5 mph
NE
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
35°F |
0 to 5 mph
E
|
|
Monday
Oct 19
|
Areas Of Frost then Mostly Sunny
|
60°F |
5 to 10 mph
NE
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
41°F |
5 to 10 mph
NE
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
66°F |
5 to 10 mph
N
|
|
Tuesday Night
Oct 20
|
Partly Cloudy
|
45°F |
5 to 10 mph
N
|
|
Wednesday
Oct 21
|
Sunny
|
65°F |
10 to 15 mph
NE
|
|
Wednesday Night
Oct 21
|
Mostly Clear then Slight Chance Rain Showers
|
43°F |
5 to 10 mph
NE
|
|
Thursday
Oct 22
|
Slight Chance Rain Showers
|
62°F |
5 to 10 mph
NE
|
|
Thursday Night
Oct 22
|
Slight Chance Rain Showers
|
44°F |
0 to 5 mph
NE
|
|
Friday
Oct 23
|
Mostly Sunny
|
66°F |
5 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Belfast.