Palmer, IL Weather & Growing Conditions
Overnight
55°F
Light Rain Likely
Rain likely. Mostly cloudy, with a low around 55. South southwest wind 12 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Light Rain Likely | 12 to 15 mph SSW | 64% |
| Wednesday | 60°F | Mostly Cloudy | 10 to 14 mph SW | 13% |
| Wednesday Night | 45°F | Mostly Cloudy | 9 mph WSW | 1% |
| Thursday | 61°F | Partly Sunny | 9 to 14 mph WSW | 3% |
| Thursday Night | 43°F | Mostly Cloudy | 6 mph WNW | 1% |
| Friday | 55°F | Partly Sunny | 7 to 10 mph NNW | 3% |
| Friday Night | 33°F | Partly Cloudy | 1 to 7 mph NNW | 0% |
| Saturday | 54°F | Mostly Sunny | 1 to 5 mph NNW | 0% |
| Saturday Night | 32°F | Partly Cloudy | 2 mph NW | 1% |
| Sunday | 58°F | Sunny | 1 to 7 mph WNW | 1% |
| Sunday Night | 33°F | Clear | 2 mph W | 1% |
| Monday | 64°F | Sunny | 1 to 6 mph SW | 0% |
| Monday Night | 38°F | Clear | 3 mph SW | 0% |
| Tuesday | 67°F | Sunny | 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Palmer, IL
Last spring frost
Apr 12
First fall frost
Oct 20
Growing season
190 days
Hardiness zone
6a
Explore more for Palmer, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Morrisonville, Il (6.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.