Mound City, IL Weather & Growing Conditions
Tonight
57°F
Showers And Thunderstorms
Showers and thunderstorms before 1am. Mostly cloudy. Low around 57, with temperatures rising to around 59 overnight. South wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Showers And Thunderstorms | 6 to 13 mph S | 99% |
| Wednesday | 69°F | Partly Sunny | 5 to 9 mph WSW | 7% |
| Wednesday Night | 44°F | Mostly Clear | 3 mph SW | 0% |
| Thursday | 69°F | Sunny | 1 to 6 mph SW | 0% |
| Thursday Night | 46°F | Partly Cloudy | 2 mph W | 4% |
| Friday | 63°F | Partly Sunny | 2 to 8 mph NNW | 1% |
| Friday Night | 40°F | Partly Cloudy | 5 mph N | 1% |
| Saturday | 59°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 36°F | Partly Cloudy | 1 mph NNW | 1% |
| Sunday | 62°F | Sunny | 0 to 5 mph WNW | 5% |
| Sunday Night | 35°F | Mostly Clear | 2 mph NW | 6% |
| Monday | 65°F | Sunny | 1 to 6 mph W | 1% |
| Monday Night | 38°F | Mostly Clear | 2 mph WSW | 0% |
| Tuesday | 69°F | Sunny | 1 to 5 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mound City, IL
Last spring frost
Apr 2
First fall frost
Oct 31
Growing season
211 days
Hardiness zone
7a
Explore more for Mound City, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Cairo 3N, Il (3.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.