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Excelsior, PA Weather Tomorrow

Your Excelsior weather tomorrow forecast is paired with a detailed 5 day outlook featuring precipitation probability, daily and nightly weather conditions, high and low temperature trends, sunrise and sunset information, sky cover, wind speed, wind direction, and wind chill across the Excelsior area and around Northumberland county, Pennsylvania.
Updated: Thu Sep 3rd 2026 9:45 PM EDT
Excelsior, PA Weather – 9-3 – Moderate Rain
87° / 67°
Moderate Rain
Excelsior is set for rain showers with temperatures peaking at 87°F and dipping to 67°F. The chance of rain is 89% with an estimated 9.88in. Winds will be light at 10mph and gusts of 20.4mph at 10 PM. High humidity with average of 84% is anticipated, the maximum being 93% at 11 PM and 89% being its lowest at 10 PM. Barometric pressure is its highest of 29.94inHg at 10 PM, a lowest point of 29.94inHg at 10 PM with an avg 29.94inHg.
Excelsior, PA Weather – 9-4 – Fog
79° / 64°

Weather Tomorrow

Fog
Excelsior is set for fog with temperatures peaking at 79°F and dipping to 64°F. The chance of rain is 90% with an estimated 0.41in. Wind will be moderate, blowing around 15mph on average and gusts of 33.4mph at 12 AM. High humidity with average of 89% is anticipated, the maximum being 98% at 11 PM and 59% being its lowest at 2 PM. Barometric pressure is its highest of 29.99inHg at 12 AM, a lowest point of 29.82inHg at 5 PM with an avg 29.9inHg.
Excelsior, PA Weather – 9-5 – Sunny
74° / 59°
Sunny
Excelsior could see a sunny day with daytime highs of 74°F and nighttime lows near 59°F. There's a very small chance of rainfall, only about 10%. Wind will be moderate, blowing around 12mph on average and gusts of 22.2mph at 7 PM. The humidity will be on the higher side, averaging about 77%, the maximum being 97% at 12 AM and 44% being its lowest at 4 PM. Barometric pressure is its highest of 29.95inHg at 11 PM, a lowest point of 29.86inHg at 5 PM with an avg 29.89inHg.
Excelsior, PA Weather – 9-6 – Sunny
71° / 54°
Sunny
It will be sunny in Excelsior, with a high of 71°F and a low of 54°F. There might be light rainfall having a 14% chance with an estimated 0in. Winds will be light at 8mph and gusts of 14.1mph at 5 AM. The humidity will be on the higher side, averaging about 77%, the maximum being 98% at 6 AM and 45% being its lowest at 3 PM. Barometric pressure is its highest of 30.15inHg at 10 PM, a lowest point of 29.96inHg at 12 AM with an avg 30.05inHg.
Excelsior, PA Weather – 9-7 – Sunny
73° / 53°
Sunny
Excelsior may see a sunny day, with daytime highs of 73°F and overnight lows near 53°F. There's a very small chance of rainfall, only about 7%. Winds will be light at 6mph and gusts of 13.9mph at 2 AM. The humidity will be on the higher side, averaging about 69%, the maximum being 93% at 6 AM and 40% being its lowest at 4 PM. Barometric pressure is its highest of 30.23inHg at 8 AM, a lowest point of 30.12inHg at 6 PM with an avg 30.18inHg.
Excelsior, PA Weather – 9-8 – Overcast
73° / 56°
Overcast
Excelsior may see overcast, with daytime highs of 73°F and overnight lows near 56°F. There might be light rainfall having a 16% chance. Winds will be light at 7mph and gusts of 8.7mph at 4 AM. The humidity will be on the higher side, averaging about 69%, the maximum being 85% at 6 AM and 50% being its lowest at 2 PM. Barometric pressure is its highest of 30.19inHg at 11 PM, a lowest point of 30.15inHg at 6 PM with an avg 30.17inHg.

Currently

Moderate Rain 77°F
29.95 inHg.
Barometer
82%
Humidity
NNW 4.3 mph
Wind
Moderate Rain

5 Day Forecast Nearby

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