National Weather Service Forecast for: Hempstead NY
Issued by: National Weather Service New York, NY
Updated: 2:34 pm EDT Jul 28, 2026
 
Tonight

Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11pm. Low around 69. South wind 11 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
T-storms then
Showers

 Wednesday

Wednesday: Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 78. Southeast wind around 9 mph becoming north in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Showers
Likely then
Chance
T-storms
 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Northwest wind around 8 mph. Chance of precipitation is 40%.
Chance
Showers

 Thursday

Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 79. North wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely

 Thursday
Night
Thursday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 66. North wind around 8 mph. Chance of precipitation is 60%.
Showers
Likely then
Partly Cloudy
 Friday

Friday: Mostly sunny, with a high near 83.
Mostly Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 68.
Partly Cloudy

 Saturday

Saturday: Mostly sunny, with a high near 84.
Mostly Sunny

 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 70.
Mostly Cloudy
Lo 69 °F Hi 78 °F Lo 67 °F Hi 79 °F Lo 66 °F Hi 83 °F Lo 68 °F Hi 84 °F Lo 70 °F

Hazardous Weather Outlook
Flood Watch
Rip Current Statement
 

Tonight
 
 Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11pm. Low around 69. South wind 11 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
 
 Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 78. Southeast wind around 9 mph becoming north in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Northwest wind around 8 mph. Chance of precipitation is 40%.
Thursday
 
 A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 79. North wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
 
 Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 66. North wind around 8 mph. Chance of precipitation is 60%.
Friday
 
 Mostly sunny, with a high near 83.
Friday Night
 
 Partly cloudy, with a low around 68.
Saturday
 
 Mostly sunny, with a high near 84.
Saturday Night
 
 Mostly cloudy, with a low around 70.
Sunday
 
 Partly sunny, with a high near 83.
Sunday Night
 
 A 40 percent chance of showers. Mostly cloudy, with a low around 70.
Monday
 
 A 30 percent chance of showers. Partly sunny, with a high near 83.
Monday Night
 
 A 30 percent chance of showers. Mostly cloudy, with a low around 70.
Tuesday
 
 Mostly sunny, with a high near 85.

 

Forecast from NOAA-NWS for Hempstead NY.