NWS Forecast for Greece NY

National Weather Service Forecast for: Greece NY
Issued by: National Weather Service Buffalo, NY

Updated: 9:57 am EDT Jun 30, 2026

Today Chance T-storms	Tonight Partly Cloudy	Wednesday Hot	Wednesday Night Mostly Clear	Thursday Hot	Thursday Night Mostly Clear	Friday Hot	Friday Night Partly Cloudy then Chance Showers	Independence Day Chance Showers then Chance T-storms
Hi 92 °F	Lo 76 °F	Hi 94 °F	Lo 77 °F	Hi 95 °F	Lo 76 °F	Hi 92 °F	Lo 73 °F	Hi 87 °F

Heat Advisory
Extreme Heat Watch
Hazardous Weather Outlook

Today	A chance of showers and thunderstorms, mainly before 2pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 98. Southwest wind 9 to 13 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight	Partly cloudy, with a low around 76. Southwest wind around 9 mph.
Wednesday	Sunny and hot, with a high near 94. Heat index values as high as 104. West wind 10 to 14 mph.
Wednesday Night	Mostly clear, with a low around 77. Southwest wind 8 to 10 mph.
Thursday	Sunny and hot, with a high near 95. West wind 9 to 16 mph.
Thursday Night	Mostly clear, with a low around 76. West wind 9 to 13 mph.
Friday	Mostly sunny and hot, with a high near 92. West wind 8 to 10 mph.
Friday Night	A chance of showers after 2am. Mostly cloudy, with a low around 73. West wind around 7 mph. Chance of precipitation is 40%.
Independence Day	A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Saturday Night	A chance of thunderstorms before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Sunday	Partly sunny, with a high near 89.
Sunday Night	Mostly cloudy, with a low around 70.
Monday	A chance of showers. Partly sunny, with a high near 89. Chance of precipitation is 30%.

Forecast from NOAA-NWS for Greece NY.