What is today's weather forecast for Upton, NY?

Today's forecast for Upton shows a low of 45 degrees Fahrenheit. Partly cloudy, with a low around 45.

What is the 7-day weather forecast for Upton, NY?

The 7-day forecast for Upton shows highs from 45 to 60 degrees and lows from 28 to 51 degrees Fahrenheit. Expect precipitation on 2 days with chances of 20% or higher.

Will it rain in Upton, NY this week?

Yes, rain is possible in Upton this week. Precipitation chances: Sunday (90% chance), Monday (58% chance).

How accurate is the Upton weather forecast?

WeatherForYou provides highly accurate Upton forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Upton, NY Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station Switch to Metric Units

45°F
Feels Like 45°F

Humidity 90% Dew Point 42°F Wind Calm Barometer 29.91 in.759.7 mm

Visibility 10 mi.

Report from a NOAA weather station 2.6 miles SSE of central Upton
at 9:56 PM Sat, Nov 8, 2025

Current Conditions From Nearby Local Station Switch to Metric Units

45°F
Feels Like 45°F

Humidity 90% Dew Point 42°F Wind Calm Barometer 29.91 in.759.7 mm

Visibility 10 mi.

Report from a NOAA weather station 2.6 miles SSE of central Upton
at 9:56 PM Sat, Nov 8, 2025

Point Forecast at a Glance

SatNov 8

SunNov 9

90%

MonNov 10

60%

TueNov 11

20%

WedNov 12

ThuNov 13

FriNov 14

7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 45°F to 60°F. Some rain possible with at least 2 days showing precipitation chances of 20% or higher.

Climate Context

Temperatures are expected to be near normal for this time of year, with highs around 53°F and lows around 37°F.

This Date in Weather History

1870 - The first storm warning was issued by the U.S. Signal Corps Weather Service.

Upton, NY 7 Day Weather Forecast Details

Saturday Nov 8

Night: Partly cloudy, with a low around 45. East wind around 5 mph.

Sunday Nov 9

Day: Rain after 10am. Mostly cloudy. High near 60, with temperatures falling to around 56 in the afternoon. Southeast wind 6 to 12 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Night: Rain likely before 7pm, then rain likely and drizzle likely and patchy fog between 7pm and 10pm, then rain showers likely. Cloudy, with a low around 51. South wind 5 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Monday Nov 10

Day: Rain showers likely. Mostly cloudy. High near 57, with temperatures falling to around 49 in the afternoon. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.

Night: Partly cloudy. Low around 28, with temperatures rising to around 31 overnight. Northwest wind around 12 mph.

Tuesday Nov 11

Day: A slight chance of rain and snow showers between 7am and 1pm. Partly sunny. High near 45, with temperatures falling to around 43 in the afternoon.

Night: Partly cloudy, with a low around 35.

Wednesday Nov 12

Day: Partly sunny, with a high near 53.

Night: Mostly cloudy, with a low around 39.

Thursday Nov 13

Day: Mostly sunny, with a high near 51.

Night: Partly cloudy, with a low around 37.

Friday Nov 14

Day: Mostly sunny, with a high near 50.

Night: Partly cloudy, with a low around 34.

Saturday Nov 15

Day: Mostly sunny, with a high near 49.

Sun & Moon Monthly

First Light 6:02 AM

Sunrise 6:31 AM

Sunset 4:41 PM

Last Light 5:10 PM

Moonrise ------

Moonset 10:31 AM

Moon Phase

Nearby Tide Stations

Smith Point Bridge, Narrow Bay
(7.8 miles away)

Moriches Coast Guard Station
(8.5 miles away)

Patchogue
(9 miles away)

Lakes Weather - Plan for a Beautiful Day

Weather Near Upton

Stony Brook, NY

Water Mill, NY

New Haven, CT

Contiguous United States Extremes

Sat's High Temperature
99 at 2 Miles North-northeast Of Lapuerta, TX

Sat's Low Temperature
5 at 20 Miles West-southwest Of Dubois, WY

Weather Folklore

The factory smoke stack is more of a nuisance before a rain.

Current subscribers - login to your ClearSky account

About Upton, NY

Upton is a hamlet and census-designated place (CDP) located on Eastern Long Island in the town of Brookhaven in Suffolk County, New York, United States. It is the home of the Brookhaven National Laboratory and a National Weather Service (NWS) Weather Forecast Office (WFO) on the grounds of the national lab. This NWS WFO is code "OKX", and serves the New York metropolitan area. The town is so named because it was the site of the U.S. Army's Camp Upton, which was active from 1917 until 1920, and again from 1940 until 1946. During World War II, the camp was rebuilt primarily as an induction center for draftees. The Army was later to use the site as a convalescent and rehabilitation hospital for returning wounded. The 32 megawatt (MW) Long Island Solar Farm (LISF), located in Upton, is the largest photovoltaic array in the eastern United States. The LISF is made up of 164,312 solar panels which provide enough electricity for roughly 4,500 households. The project will cause the abatement of more than 30,000 metric tons of carbon dioxide emissions per year. It earned the Best Photovoltaic Project of Year Award from the New York Solar Energy Industries Association.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.