Hammond, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hammond, a village in Piatt County, Illinois.
This Afternoon
76°F
Chance Light Rain
A chance of rain and a slight chance of thunderstorms. Mostly cloudy, with a high near 76. South southeast wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Hammond
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Chance Light Rain | 20 mph SSE | 38% |
| Tonight | 54°F | Rain | 15 to 18 mph S | 94% |
| Wednesday | 62°F | Slight Chance Light Rain then Mostly Cloudy | 13 to 16 mph SW | 24% |
| Wednesday Night | 43°F | Mostly Cloudy | 10 mph SW | 1% |
| Thursday | 62°F | Mostly Sunny | 9 to 15 mph WSW | 3% |
| Thursday Night | 41°F | Mostly Cloudy | 7 mph WNW | 13% |
| Friday | 56°F | Partly Sunny | 7 to 12 mph NNW | 12% |
| Friday Night | 35°F | Partly Cloudy | 5 to 9 mph NNW | 6% |
| Saturday | 54°F | Mostly Sunny | 6 mph NW | 1% |
| Saturday Night | 32°F | Partly Cloudy | 3 mph W | 1% |
| Sunday | 60°F | Sunny | 3 to 9 mph W | 9% |
| Sunday Night | 32°F | Mostly Clear | 7 mph WNW | 6% |
| Monday | 64°F | Sunny | 5 to 12 mph WSW | 2% |
| Monday Night | 37°F | Mostly Clear | 8 mph WSW | 2% |
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 Nov 4, 2026.