Melvin, IL Weather & Growing Conditions
Tonight
58°F
Rain Showers
Rain showers. Cloudy. Low around 58, with temperatures rising to around 60 overnight. South wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Rain Showers | 15 to 20 mph S | 81% |
| Wednesday | 63°F | Chance Rain Showers then Mostly Cloudy | 15 mph SSW | 37% |
| Wednesday Night | 46°F | Mostly Cloudy | 10 mph SW | 3% |
| Thursday | 61°F | Partly Sunny | 10 to 15 mph WSW | 6% |
| Thursday Night | 42°F | Mostly Cloudy then Chance Rain Showers | 5 mph WNW | 26% |
| Friday | 56°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NNW | 19% |
| Friday Night | 34°F | Mostly Cloudy | 5 to 10 mph NNW | 6% |
| Saturday | 55°F | Mostly Sunny | 5 mph NW | 3% |
| Saturday Night | 32°F | Partly Cloudy | 0 to 5 mph W | 4% |
| Sunday | 60°F | Mostly Sunny | 5 to 10 mph W | 10% |
| Sunday Night | 32°F | Mostly Clear | 5 mph WNW | 9% |
| Monday | 64°F | Sunny | 5 to 10 mph WSW | 4% |
| Monday Night | 37°F | Mostly Clear | 5 to 10 mph WSW | 3% |
| Tuesday | 67°F | Sunny | 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Melvin, IL
Last spring frost
Apr 21
First fall frost
Oct 17
Growing season
178 days
Hardiness zone
6a
Explore more for Melvin, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Gibson City, Il (8.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.