Upper Allen, PA Weather Forecast

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Upper Allen, PA Weather Forecast

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Upper Allen PA weather  - Clear - 52°F
Clear
52°F
Updated 3:27 am
Feels Like 50°F
Humidity 89%
Wind WSW 3 mph
Barometer  30.3 in
Dew Point 49°F
Upper Allen PA weather  - Clear - 11°C
Clear
11°C
Updated 3:27 am
Feels Like 10°C
Humidity 89%
Wind WSW 5 km/h
Barometer  102.6 kPa
Dew Point 9°C

Upper Allen Weather Forecast

REST OF TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY
Upper Allen, PA Weather - Rest Of Tonight Mostly Clear Upper Allen, PA Weather - Tuesday Sunny Upper Allen, PA Weather - Tuesday Night Mostly Clear Upper Allen, PA Weather - Wednesday Patchy Fog Upper Allen, PA Weather - Wednesday Night Partly Cloudy Upper Allen, PA Weather - Thursday Chance Of Showers Upper Allen, PA Weather - Thursday Night Chance Of Showers Upper Allen, PA Weather - Friday Mostly Sunny Upper Allen, PA Weather - Friday Night Partly Cloudy Upper Allen, PA Weather - Saturday Partly Sunny Upper Allen, PA Weather - Saturday Night Chance Of Showers Upper Allen, PA Weather - Sunday Chance Of Showers
Mostly Clear Sunny Mostly Clear Patchy Fog Partly Cloudy Chance of Showers Chance of Showers Mostly Sunny Partly Cloudy Partly Sunny Chance of Showers Chance of Showers
Lo: 49°FLo: 9°C Hi: 79°FHi: 26°C
Lo: 55°FLo: 13°C Hi: 85°FHi: 29°C
Lo: 61°FLo: 16°C Hi: 85°FHi: 29°C
Lo: 69°FLo: 21°C Hi: 81°FHi: 27°C
Lo: 59°FLo: 15°C Hi: 79°FHi: 26°C
Lo: 65°FLo: 18°C Hi: 81°FHi: 27°C
POP: 50% POP: 50% POP: 30% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 300 AM EDT Tue Sep 15 2026 Upper Allen, PA Weather - WeatherWorld.com

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Upper Allen Forecast Discussion

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Issued: 129 AM EDT Tue Sep 15 2026

Key Messages

1) Noticeably cooler/pleasant and rain-free start to the week 2) Warm/humid conditions return mid to late week with best odds for rain Thursday


Discussion

... KEY MESSAGE 1: Noticeably cooler/pleasant and rain-free start to the week

Sky has cleared out. But, thin high clouds are moving into the west, and will gradually overspread most of Central PA overnight. That shouldn`t matter to the river valley fog which should be starting to show up by midnight.

Prev...

Refreshing airmass behind co...