Great River, NY Weather Forecast & Conditions

Good afternoonCurrently Mostly Cloudy

Great River, NY

Islip Weather StationCHANGE

45°Mostly Cloudy44°/30°

HOURLY

Today3 PM46° 1%WNW 11mph

4 PM44° 7%WNW 11mph

5 PM42° 23%WNW 12mph

6 PM40° 24%WNW 13mph

7 PM38° 4%WNW 16mph

8 PM37° 1%WNW 16mph

9 PM36° 0%WNW 16mph

10 PM35° 1%WNW 21mph

11 PM34° 1%WNW 22mph

Monday12 AM33° 1%WNW 22mph

1 AM33° 1%WNW 20mph

2 AM32° 1%WNW 20mph

MORE

RIGHT NOW

Feels like39°

SUNRISE7:15 AM

SUNSET4:45 PM

Humidity:53%

Wind:WNW 12 mph

UV index:1

Barometer:29.6

7 DAY FORECAST

Sunday

44°/30°

Cloudy 24%

Monday

41°/31°

Sunny 1%

Tuesday

43°/40°

Mostly Sunny 3%

Wednesday

47°/36°

Cloudy 5%

Thursday

41°/21°

AM Clouds/PM Sun 24%

Friday

31°/26°

AM Snow Showers 36%

Saturday

40°/31°

Partly Cloudy 24%

Great River, NY Weather Forecast & Conditions

Thousands of tourists stranded in northern Finland as deep freeze halts flights

Thousands of tourists are stranded in northern Finland after flights at Kittilä airport were canceled due to severe cold.

Lindsey Vonn's World Cup race canceled because of snowfall, wind gusts in Austria

Winter storm slams UK and France as cold snap spreads across Europe

Storms hit Oklahoma with high winds and 2 tornadoes, officials say

Emergency alerts sent in southwest England as UK braces for big storm

Snow and ice ground flights and choke highways in parts of Europe

Winter storms bring snow, ice and school and road closures to New England. More bad weather's coming

Snow and ice wreak havoc across Europe, causing deadly accidents and travel chaos

Flash floods in Indonesia kill at least 16 people and sweep away homes

A snowmobiler dies after an avalanche in California's Sierra Nevada

Rain continues in parts of California reeling from flooding and high tides

Why home maintenance deserves a spot in the annual health and budget plans

Heavy rain, high tides cause flooding along stretch of Northern California

LI weather: Below average temps Saturday with chance of snow

Forecast: Below-average temperatures through Monday with chance of light weekend snow

Fast-moving snow squalls create dangerous LI road conditions

Flash floods triggered by heavy rains in Afghanistan kill at least 17 people

Rain soaks Rose Parade in California and snow squalls hit Midwest and Northeast on first day of 2026

Nasty weather on tap for New Year fetes at Rose Parade in California and revelers in New York City

Midwest hit with more extreme cold after winter storm

Snow likely for start of 2026

California needs more snow accumulation to bolster 2026 water supplies, officials say

Roses in the rain? New Year's Day parade in Pasadena gets wet forecast. Bundle up for NYC ball drop

Winter storm packing snow and strong winds to descend on Great Lakes and Northeast

A bomb cyclone brings blizzards to the Midwest before turning east

Rain could be an unwelcome entry at the Rose Parade on New Year's Day. Bundle up for NYC ball drop

2025 was one of three hottest years on record, scientists say

Sharp drop in LI temperatures expected into New Year's holiday

How bomb cyclones form and create dangerous conditions

A power outage can turn dangerous fast. Here's how to prepare

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Hungary's 'water guardian' farmers fight back against desertification

Winter storm sweeps across US with snow, ice and severe weather

Rain in Long Island's Monday forecast

'I just fell and it was really fun!'

Can you dig it?

Black ice warning in effect following snowstorm, weather officials say

Winter storm snarls holiday travel across US Northeast, Great Lakes

Chilly Gaza braces for more winter rain and word of any progress in ceasefire talks

How to protect your pipes, pets and yourself when temps turn frigid

California's intense winter storms turned some roads into rivers of mud

Follow these tips to prepare and stay safe for LI snowstorms

Up to 9 inches of snow possible Friday into Saturday

Snow headed for LI

New storm hitting waterlogged Southern California could bring mudslides and high surf

Christmas Day rescue: Police save LI boy, 8, from icy pond

Powerful holiday storm lashes Southern California and brings flash floods, mudslides

California drivers warned to reconsider Christmas travel plans ahead of storms

LI could see accumulating snowfall later this week

Nor'easter's first signs could appear Saturday night, with Sunday into Monday worst impact

Strong rain, wind forecast for weekend

Wintry mix impacting LI travel

Wintry mix will make for messy Tuesday commute

Dry Monday set to give way to messy Tuesday

Flash flooding in northern California leads to soaked roads, water rescues and 1 death

What's an atmospheric river? AP explains the weather phenomenon

Solstice marks arrival of winter; mild forecast for Christmas

Dry, seasonably cool weekend in store as LI recovers from Friday storm

Storm causes headaches across LI

Sri Lanka tea workers struggle in poverty. Flooding cost many their lives

Forecasters issue rare weather warning as strong gusts fuel wildfire threats in Colorado

Warm weather and low snowpack bedevil Western ski resorts

Hypothermia claims newborn in Gaza and more babies are at risk, doctor says

Strong winds, rain to hit LI early Friday

Hurricane-force wind downs power lines, fans wildfires in Colorado with more on way

Heavy rain, winds forecast for Thursday and into Friday

College Football Playoff picks: Sooners, Aggies, Rebels and Ducks should advance to quarterfinals

Trump administration moves to dissolve national climate research lab in Colorado

Damage from record flooding in Washington state is profound, with more on the way, governor says

2 people and a dog rescued from frigid waters off Shelter Island

Gaza families struggle to recover from days of torrential rains that killed 12 people

Manhasset road to be stabilized 13 years after Superstorm Sandy damage

Bitter cold sticks around on LI before midweek warmup

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Golden Globes 2026: Our critic picks who should, will win

Expect a big night for "One Battle After Another" and maybe a few surprises.

What to know about Trump's crackdown on immigration programs

At least 6 new supermarkets opening on LI this year

President Donald Trump's impact on Long Island

Top Stories

Crews use sandbags to shore up levee breach near Seattle after failure prompts flood warning

See photos from LI's first snowstorm of the season

Weekend storm drops heavy snow around Northeast as Pacific Northwest braces for more rain

Arctic air mass pushes to the U.S. South; Midwest also bracing for dangerous wind chills

LI could get up to 5 inches of snow this weekend

Rain changing into snow

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