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Riverhead, NY Weather Tomorrow

Planning ahead? View tomorrow's Riverhead weather along with a complete 5 day forecast that includes daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the Riverhead area and around Suffolk county, New York.
Updated: Mon Aug 31st 2026 3:15 PM EDT
Riverhead, NY Weather – 8-31 – Scattered Showers
77° / 67°
Scattered Showers
Riverhead is set for passing showers with temperatures peaking at 77°F and dipping to 67°F. Rainfall predicted to have a 56% chance with an estimated 0.03in. Winds will be light at 10mph and gusts of 10.1mph at 7 PM. The humidity will be on the higher side, averaging about 77%, the maximum being 79% at 11 PM and 69% being its lowest at 4 PM. Barometric pressure is its highest of 30.07inHg at 4 PM, a lowest point of 30.04inHg at 11 PM with an avg 30.06inHg.
Riverhead, NY Weather – 9-1 – Scattered Showers
77° / 70°

Weather Tomorrow

Scattered Showers
Scattered showers are in the forecast for Riverhead, with a high of 77°F and a low of 70°F. The chance of rain is 81% with an estimated 0.25in. Wind will be moderate, blowing around 12mph on average and gusts of 18.1mph at 2 PM. High humidity with average of 81% is anticipated, the maximum being 94% at 10 PM and 73% being its lowest at 1 PM. Barometric pressure is its highest of 30.06inHg at 10 PM, a lowest point of 29.99inHg at 4 PM with an avg 30.01inHg.
Riverhead, NY Weather – 9-2 – Light Rain Shower
74° / 70°
Light Rain Shower
Riverhead may see rain showers, with daytime highs of 74°F and overnight lows near 70°F. The chance of rain is 92% with an estimated 0.62in. Wind will be moderate, blowing around 20mph on average and gusts of 27.1mph at 12 PM. High humidity with average of 92% is anticipated, the maximum being 96% at 4 AM and 85% being its lowest at 5 PM. Barometric pressure is its highest of 30.05inHg at 2 AM, a lowest point of 29.94inHg at 2 PM with an avg 30inHg.
Riverhead, NY Weather – 9-3 – Overcast
78° / 69°
Overcast
Daytime highs will reach 78°F with lows dropping to 69°F in Riverhead, where it will be overcast. The chance of rain is 88% with an estimated 0.31in. Wind will be moderate, blowing around 15mph on average and gusts of 21mph at 10 AM. High humidity with average of 88% is anticipated, the maximum being 94% at 7 AM and 76% being its lowest at 1 PM. Barometric pressure is its highest of 30inHg at 12 AM, a lowest point of 29.81inHg at 4 PM with an avg 29.89inHg.
Riverhead, NY Weather – 9-4 – Overcast
81° / 69°
Overcast
In Riverhead, it will be overcast with highs near 81°F and lows around 69°F. There might be light rainfall having a 20% chance with an estimated 0in. Wind will be moderate, blowing around 15mph on average and gusts of 24.2mph at 7 PM. The humidity will be on the higher side, averaging about 71%, the maximum being 89% at 2 AM and 57% being its lowest at 5 PM. Barometric pressure is its highest of 29.88inHg at 9 AM, a lowest point of 29.78inHg at 4 PM with an avg 29.83inHg.
Riverhead, NY Weather – 9-5 – Sunny
74° / 66°
Sunny
Highs will reach 74°F with lows near 66°F in Riverhead, where a sunny day is. There's a very small chance of rainfall, only about 9% with an estimated 0in. Wind will be moderate, blowing around 17mph on average and gusts of 24.9mph at 8 AM. The humidity will be on the higher side, averaging about 64%, the maximum being 73% at 11 PM and 52% being its lowest at 2 PM. Barometric pressure is its highest of 29.89inHg at 11 PM, a lowest point of 29.82inHg at 4 PM with an avg 29.84inHg.

Currently

Overcast 74°F
30.08 inHg.
Barometer
66%
Humidity
SE 6.5 mph
Wind
Overcast

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