National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Niagara Falls, Niagara Falls International Airport (KIAG)

Lat: 43.11°NLon: 78.94°WElev: 587ft.

A Few Clouds

67°F

19°C

Humidity 84%
Wind Speed Calm
Barometer 30.01 in (1015.8 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 17 May 11:53 pm EDT
Extended Forecast for

Grand Island NY

  • Overnight

    Overnight: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 62. South wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 86. Southwest wind 8 to 18 mph, with gusts as high as 28 mph.

    High: 86 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 64. Southwest wind around 9 mph. Chance of precipitation is 20%.

    Low: 64 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. Southwest wind 11 to 16 mph, with gusts as high as 28 mph.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 55. Southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers before 8am. Partly sunny, with a high near 64. West wind around 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. Northwest wind 5 to 8 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 59. Northeast wind around 7 mph.

    High: 59 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 62. South wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Partly sunny, then gradually becoming sunny, with a high near 86. Southwest wind 8 to 18 mph, with gusts as high as 28 mph.
Monday Night
A slight chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 64. Southwest wind around 9 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 83. Southwest wind 11 to 16 mph, with gusts as high as 28 mph.
Tuesday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 55. Southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers before 8am. Partly sunny, with a high near 64. West wind around 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 42. Northwest wind 5 to 8 mph.
Thursday
Mostly sunny, with a high near 59. Northeast wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Partly sunny, with a high near 67.
Friday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Sunday
A chance of showers. Mostly cloudy, with a high near 71. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Island NY
 43.03°N 78.97°W (Elev. 597 ft)
Last Update:
9:57 pm EDT May 17, 2026
Forecast Valid:
12am EDT May 18, 2026-6pm EDT May 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation