Strawn, IL Weather & Growing Conditions
Overnight
57°F
Rain Showers Likely
Rain showers likely. Cloudy. Low around 57, with temperatures rising to around 62 overnight. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Rain Showers Likely | 15 mph SSW | 66% |
| Wednesday | 63°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph SW | 22% |
| Wednesday Night | 45°F | Mostly Cloudy | 10 to 15 mph SW | 5% |
| Thursday | 60°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph WSW | 18% |
| Thursday Night | 40°F | Chance Rain Showers | 5 to 10 mph NW | 43% |
| Friday | 51°F | Partly Sunny | 10 to 15 mph NNW | 10% |
| Friday Night | 32°F | Partly Cloudy | 5 to 10 mph NNW | 0% |
| Saturday | 53°F | Sunny | 5 mph NW | 0% |
| Saturday Night | 31°F | Partly Cloudy | 0 to 5 mph WNW | 1% |
| Sunday | 57°F | Sunny | 5 to 10 mph W | 2% |
| Sunday Night | 32°F | Clear | 5 mph W | 0% |
| Monday | 64°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 mph WSW | 1% |
| Tuesday | 65°F | Sunny | 5 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Strawn, IL
Last spring frost
Apr 25
First fall frost
Oct 20
Growing season
175 days
Hardiness zone
6a
Explore more for Strawn, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Piper City, Il (12.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.