St. Thomas, PA Weather Forecast

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St. Thomas, PA Weather Forecast

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St. Thomas PA weather  - Clear - 68°F
Clear
68°F
Updated 3:50 am
Feels Like 63°F
Humidity 78%
Wind SE 5 mph
Barometer  29.92 in
Dew Point 61°F
St. Thomas PA weather  - Clear - 20°C
Clear
20°C
Updated 3:50 am
Feels Like 17°C
Humidity 78%
Wind SE 8 km/h
Barometer  101.3 kPa
Dew Point 16°C

St. Thomas Weather Forecast

REST OF TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY
St. Thomas, PA Weather - Rest Of Tonight Clear St. Thomas, PA Weather - Wednesday Isolated Showers St. Thomas, PA Weather - Wednesday Night Chance Of Showers St. Thomas, PA Weather - Thursday Chance Of Showers St. Thomas, PA Weather - Thursday Night Chance Of Showers St. Thomas, PA Weather - Friday Showers Likely St. Thomas, PA Weather - Friday Night Showers Likely St. Thomas, PA Weather - Saturday Sunny St. Thomas, PA Weather - Saturday Night Mostly Clear St. Thomas, PA Weather - Sunday Sunny St. Thomas, PA Weather - Sunday Night Mostly Clear St. Thomas, PA Weather - Monday Sunny
Clear Isolated Showers Chance of Showers Chance of Showers Chance of Showers Showers Likely Showers Likely Sunny Mostly Clear Sunny Mostly Clear Sunny
Lo: 65°FLo: 18°C Hi: 81°FHi: 27°C
Lo: 55°FLo: 13°C Hi: 65°FHi: 18°C
Lo: 55°FLo: 13°C Hi: 79°FHi: 26°C
Lo: 41°FLo: 5°C Hi: 55°FHi: 13°C
Lo: 35°FLo: 2°C Hi: 61°FHi: 16°C
Lo: 39°FLo: 4°C Hi: 65°FHi: 18°C
POP: 20% POP: 40% POP: 50% POP: 70% POP: 70% POP: 70%
POP = Probability of Precipitation.
Weather Outlook Updated: 300 AM EDT Wed Oct 14 2026 St. Thomas, PA Weather - WeatherWorld.com

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St. Thomas Forecast Discussion

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Issued: 153 AM EDT Wed Oct 14 2026

Key Messages

1) Big temperature swing ahead with record challenging warmth followed by major cooldown this weekend

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


Discussion

... KEY MESSAGE 1: Big temperature swing ahead with record challenging warmth followed by major cooldown this weekend

Abundant sunshine and gusty southwest breeze fueling record challenging warmth this afternoon across central PA. It`s an OcTOASTer pattern for sure. The unseasonably mild temperatures cont...