Hammond, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hammond, a village in Piatt County, Illinois.
Tonight
70°F
Partly Cloudy
Partly cloudy, with a low around 70. East southeast wind around 9 mph, with gusts as high as 16 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Hammond
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Partly Cloudy | 9 mph ESE | 6% |
| Saturday | 90°F | Chance Showers And Thunderstorms | 10 mph SSW | 28% |
| Saturday Night | 69°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 8 mph S | 20% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 5 to 12 mph NW | 35% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 13 mph NE | 66% |
| Monday | 71°F | Showers And Thunderstorms Likely | 14 mph NE | 68% |
| Monday Night | 54°F | Showers And Thunderstorms Likely | 12 to 15 mph NE | 59% |
| Tuesday | 68°F | Chance Rain Showers | 15 mph NE | 34% |
| Tuesday Night | 52°F | Mostly Cloudy | 7 to 14 mph NNE | 8% |
| Wednesday | 70°F | Partly Sunny | 12 mph NNE | 2% |
| Wednesday Night | 53°F | Partly Cloudy | 5 to 10 mph NNE | 2% |
| Thursday | 72°F | Mostly Sunny | 6 to 10 mph NNE | 3% |
| Thursday Night | 54°F | Partly Cloudy | 5 to 9 mph NNE | 5% |
| Friday | 74°F | Mostly Sunny | 6 to 10 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Hammond (39.803, -88.595). Updated through the day.
Growing snapshot for Hammond
Last spring frost
Apr 16
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6a
More local growing data for Hammond: nearby ZIP 61929 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Decatur Ap, Il (12.7 mi from Hammond). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.