OFFICIAL NWS PRODUCTS
Frost & freeze alerts
Active alerts nationwide · Updates every 5 minutes
FALL OUTLOOK
Cooler mornings. Colorful days.
Frost & freeze information, plant-temperature guidance, and seasonal planning.
Checking official weather information…
PLANT & CROP TEMPERATURE CHECK
The next 24 hours
Select your location for hourly NWS temperature guidance.
Temperature guidance, not an official frost warning or crop-damage prediction. Frost can form above 32°F; plant sensitivity varies by species and growth stage.
NWS frost & freeze guidance ↗KEEP YOUR COFFEE CLOSE
Plan the day ahead
Continue with severe weather, rain, wind, and tropical information throughout fall.
FALL COLOR & SEASONAL TIMING
Typical Fall Timing
Historical satellite shading shows when vegetation typically loses half its seasonal greenness. Based on the 2001–2017 median across the contiguous U.S.; not current leaf color or a peak-color forecast.
Typical greendown date · earlier → later
Before SepSep 1Oct 1Nov 1Dec 1Jan 1+
Camera icons open seasonal views from the listed providers. Map positions are approximate. Cameras show the provider’s current feed, independent of the observer report date slider.
Unshaded areas have no displayed historical estimate. This vegetation metric includes more than deciduous forests and does not measure how vibrant the leaves will look. Actual timing varies each year.
Historical source: USA National Phenology Network (2019), Land Surface Phenology 2001–2017, derived from MODIS; accessed September 18, 2026. Provisional data. Reports: Nature’s Notebook participants, latest observation per plant in the selected week. CC BY 4.0. Historical raster recolored for calendar timing.