South Branch, NJ Weather Tomorrow

See tomorrow's forecast for South Branch together with a reliable 5 day outlook featuring precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction for the South Branch area and around Somerset county, New Jersey.
Updated: Wed Oct 21st 2026 7:15 PM EDT
South Branch, NJ Weather – 10-21 – Sunny
63° / 43°
Sunny
South Branch is set for a sunny day with temperatures peaking at 63°F and dipping to 43°F. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 13mph on average and gusts of 13.2mph at 8 PM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 70% at 10 PM and 56% being its lowest at 8 PM. Barometric pressure is its highest of 30.11inHg at 8 PM, a lowest point of 30.09inHg at 11 PM with an avg 30.1inHg.
South Branch, NJ Weather – 10-22 – Sunny
66° / 40°

Weather Tomorrow

Sunny
Daytime highs will reach 66°F with lows dropping to 40°F in South Branch, where it will be sunny. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 11mph on average and gusts of 25.7mph at 9 AM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 78% at 4 AM and 28% being its lowest at 2 PM. Barometric pressure is its highest of 30.13inHg at 11 PM, a lowest point of 29.99inHg at 3 PM with an avg 30.04inHg.
South Branch, NJ Weather – 10-23 – Sunny
59° / 40°
Sunny
South Branch is set for a sunny day with temperatures peaking at 59°F and dipping to 40°F. There's a very small chance of rainfall, only about 4%. Winds will be light at 9mph and gusts of 18.8mph at 12 AM. The humidity will be on the higher side, averaging about 61%, the maximum being 87% at 7 AM and 33% being its lowest at 4 PM. Barometric pressure is its highest of 30.49inHg at 11 PM, a lowest point of 30.16inHg at 12 AM with an avg 30.35inHg.
South Branch, NJ Weather – 10-24 – Sunny
59° / 37°
Sunny
In South Branch, bright and sunny conditions with highs near 59°F and lows around 37°F. There's a very small chance of rainfall, only about 4%. Winds will be light at 5mph and gusts of 14.5mph at 8 PM. Humidity levels should be comfortable, sitting around 57% on average, the maximum being 70% at 5 AM and 40% being its lowest at 2 PM. Barometric pressure is its highest of 30.59inHg at 9 AM, a lowest point of 30.51inHg at 12 AM with an avg 30.55inHg.
South Branch, NJ Weather – 10-25 – Smoky Haze
62° / 39°
Smoky Haze
In South Branch, smoky Haze is likely with a high near 62°F and a low around 39°F. There's a very small chance of rainfall, only about 5%. Winds will be light at 9mph and gusts of 14.8mph at 5 AM. The humidity will be on the higher side, averaging about 67%, the maximum being 81% at 7 AM and 45% being its lowest at 3 PM. Barometric pressure is its highest of 30.6inHg at 9 AM, a lowest point of 30.45inHg at 11 PM with an avg 30.53inHg.
South Branch, NJ Weather – 10-26 – Sunny
66° / 41°
Sunny
Bright and sunny conditions in South Branch, with a high of 66°F and a low of 41°F. There's a very small chance of rainfall, only about 7%. Winds will be light at 9mph and gusts of 15.7mph at 12 AM. The humidity will be on the higher side, averaging about 72%, the maximum being 90% at 7 AM and 47% being its lowest at 2 PM. Barometric pressure is its highest of 30.44inHg at 12 AM, a lowest point of 30.2inHg at 11 PM with an avg 30.3inHg.

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