Mound City, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mound City, a city in Pulaski County, Illinois.
This Afternoon
79°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5pm. Partly sunny. High near 79, with temperatures falling to around 74 in the afternoon. South southeast wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
7-day forecast for Mound City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Slight Chance Showers And Thunderstorms | 15 to 18 mph SSE | 19% |
| Tonight | 56°F | Showers And Thunderstorms | 6 to 13 mph S | 99% |
| Wednesday | 69°F | Partly Sunny | 5 to 9 mph WSW | 7% |
| Wednesday Night | 43°F | Partly Cloudy | 0 to 3 mph SW | 0% |
| Thursday | 69°F | Sunny | 1 to 6 mph SW | 0% |
| Thursday Night | 45°F | Partly Cloudy | 2 mph W | 4% |
| Friday | 63°F | Partly Sunny | 2 to 8 mph NNW | 1% |
| Friday Night | 39°F | Partly Cloudy | 5 mph N | 1% |
| Saturday | 59°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 35°F | Partly Cloudy | 1 mph N | 1% |
| Sunday | 62°F | Sunny | 0 to 5 mph NW | 5% |
| Sunday Night | 35°F | Mostly Clear | 2 mph NW | 6% |
| Monday | 65°F | Sunny | 1 to 6 mph W | 1% |
| Monday Night | 37°F | Mostly Clear | 2 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Mound City (37.086, -89.163). Updated through the day.
Growing snapshot for Mound City
Last spring frost
Apr 2
First fall frost
Oct 31
Growing season
211 days
Hardiness zone
7a
More local growing data for Mound City: nearby ZIP 62963 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cairo 3N, Il (3.7 mi from Mound City). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.