Riverhead

Pennington County, New York, United States

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Current Weather

21°

Overcast

Feels Like: 20°

Min: 12°

Max: 23°

The next few hours will be clear, with today reaching 23°C and dropping to 18°C. The coming days will be clear starting in the afternoon.

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Hourly Forecast

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Today
Tomorrow

Daylight Hours

06:38

Sunrise

18:51

Sunset

12 hours 12 minutes of sunlight today

Moon

Waxing Crescent

12:31

Moonrise

20:54

Moonset

Daily Forecast

Today

12°
23°

Thursday

10°
20°

Friday

11°
24°

Saturday

10°
24°

Sunday

10°
24°

Monday

11°
27°

Tuesday

13°
27°

Wednesday

12°
26°

Thursday

12°
21°

Friday

15°
19°

Air Quality Data Available

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UV Index

No protection needed
2 Low
Low Extreme

Humidity

76% Humid
Low High

Weather in Riverhead today, September 16, 2026

Conditions in Riverhead on September 16, 2026 favour clear skies, so the day opens with a fine, sunny outlook. Any interruptions to the blue should be brief rather than lasting.

Expect highs of 23°C and cooler readings close to 12°C. Relative humidity sits between 75% and 95%, reaching its peak around 23:00. A lighter breeze peaks around 16:00 near 3.4 km/h.

Through the afternoon cloud remains the main feature, with cover near 100% around 16:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 15.4 km, briefly nearer 13.7 km. The sun rises at 06:38 and sets at 18:51, for a total of 12 hours 12 minutes of sunlight today.

In short, September 16, 2026 looks like a fine day in Riverhead for being outside, peaking around 23°C.

Frequently asked questions about weather in Riverhead

How warm does it get in Riverhead?

The warmest month in Riverhead is July, with average high temperatures of 27°C. The average temperature during this period is around 24°C.

How cold does it get in Riverhead?

The coldest month in Riverhead is January, with average low temperatures of 0°C. The average temperature during this period is around 2°C.

What is the wettest time of year in Riverhead?

The wettest month in Riverhead is December, with an average of 133mm of precipitation.

What is the driest time of year in Riverhead?

The driest month in Riverhead is June, with an average of 67mm of precipitation.

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Metric (°C, km/h)