Belfast, PA Weather Forecast

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Belfast, PA Weather Forecast

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Belfast PA weather  - Clear - 65°F
Clear
65°F
Updated 10:45 pm
Feels Like 54°F
Humidity 75%
Wind WSW 6 mph
Barometer  29.96 in
Dew Point 57°F
Belfast PA weather  - Clear - 18°C
Clear
18°C
Updated 10:45 pm
Feels Like 12°C
Humidity 75%
Wind WSW 10 km/h
Barometer  101.5 kPa
Dew Point 14°C

Belfast Weather Forecast

TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY
Belfast, PA Weather - Tonight Clearing Belfast, PA Weather - Tuesday Patchy Fog Belfast, PA Weather - Tuesday Night Mostly Clear Belfast, PA Weather - Wednesday Chance Of Showers Belfast, PA Weather - Wednesday Night Chance Of Showers Belfast, PA Weather - Thursday Partly Sunny Belfast, PA Weather - Thursday Night Showers Likely Belfast, PA Weather - Friday Showers Likely Belfast, PA Weather - Friday Night Chance Of Showers Belfast, PA Weather - Saturday Mostly Sunny Belfast, PA Weather - Saturday Night Mostly Clear Belfast, PA Weather - Sunday Sunny
Clearing Patchy Fog Mostly Clear Chance of Showers Chance of Showers Partly Sunny Showers Likely Showers Likely Chance of Showers Mostly Sunny Mostly Clear Sunny
Lo: 55°FLo: 13°C Hi: 81°FHi: 27°C
Lo: 65°FLo: 18°C Hi: 81°FHi: 27°C
Lo: 55°FLo: 13°C Hi: 69°FHi: 21°C
Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
Lo: 41°FLo: 5°C Hi: 51°FHi: 11°C
Lo: 31°FLo: -1°C Hi: 59°FHi: 15°C
POP: 40% POP: 40% POP: 60% POP: 60% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 900 PM EDT Mon Oct 12 2026 Belfast, PA Weather - WeatherWorld.com

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Issued: 937 PM EDT Mon Oct 12 2026

Key Messages

1) Big temperature swing ahead

2) Windy and wet end to the week with first flakes

3) Frost and freeze conditions this weekend


Discussion

... KEY MESSAGE 1: Big temperature swing ahead

Max temperatures are projected to challenge daily records Tuesday and Wednesday. Highs in the 70-85 range are 10 to 20 degrees above the historical average for mid October.

Contrast the early week record-challenging warmth with much colder air coming on the horizon for the weekend. The difference between max ...