Gretna, NY Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Gretna, NY in one place.
Sunny, with a high near 72. Southwest wind around 7 mph.
Local Weather Overview
This forecast page for Gretna, NY is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 14, 2026 4:05 PM EDT.
The active forecast window currently covers Sep 16 to Sep 20, 2026 for Gretna, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 20, 2026
- Latest sync
- Sep 14, 2026 4:05 PM EDT
- Forecast office
- ALY
- Source
- NOAA / NWS
Daily Outlook
This Week in Gretna
Thursday looks like the warmest upcoming period in Gretna at 74 degrees F.
Sunday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Sunday Night at about 10 mph N.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 14, 2026 4:05 PM EDT
- Coverage
- 5 days
- Time zone
- America/New_York
- Forecast office
- ALY
- Radar station
- KENX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 61.
A chance of rain showers after 2pm. Mostly sunny, with a high near 74. Chance of precipitation is 30%.
A chance of rain showers before 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Mostly sunny, with a high near 72.
Partly cloudy, with a low around 57.
A chance of rain showers after 2pm. Mostly sunny, with a high near 68. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
A chance of rain showers. Partly sunny, with a high near 65. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a low around 52.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Sunny
|
72°F |
7 mph
SW
|
|
Wednesday Night
Sep 16
|
Partly Cloudy
|
61°F |
5 mph
SW
|
|
Thursday
Sep 17
|
Mostly Sunny then Chance Rain Showers
|
74°F |
2 to 8 mph
SW
|
|
Thursday Night
Sep 17
|
Chance Rain Showers
|
63°F |
9 mph
SW
|
|
Friday
Sep 18
|
Mostly Sunny
|
72°F |
8 mph
N
|
|
Friday Night
Sep 18
|
Partly Cloudy
|
57°F |
7 mph
N
|
|
Saturday
Sep 19
|
Mostly Sunny then Chance Rain Showers
|
68°F |
7 mph
SE
|
|
Saturday Night
Sep 19
|
Chance Rain Showers
|
57°F |
8 mph
SW
|
|
Sunday
Sep 20
|
Chance Rain Showers
|
65°F |
9 mph
N
|
|
Sunday Night
Sep 20
|
Chance Rain Showers
|
52°F |
10 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Gretna.