Ruma, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ruma, a village in Randolph County, Illinois.
Tonight
70°F
Slight Chance Showers And Thunderstorms then Mostly Clear
A slight chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 70. Heat index values as high as 101. Southeast wind around 3 mph. Chance of precipitation is 20%.
7-day forecast for Ruma
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 3 mph SE | 23% |
| Saturday | 97°F | Mostly Sunny | 6 mph SW | 6% |
| Saturday Night | 71°F | Partly Cloudy | 5 mph SW | 0% |
| Sunday | 95°F | Mostly Sunny | 6 mph W | 9% |
| Sunday Night | 66°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph N | 44% |
| Monday | 83°F | Showers And Thunderstorms Likely | 5 to 9 mph N | 58% |
| Monday Night | 59°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 6 to 9 mph N | 58% |
| Tuesday | 73°F | Slight Chance Rain Showers then Partly Sunny | 8 to 12 mph N | 16% |
| Tuesday Night | 54°F | Mostly Cloudy | 5 to 10 mph N | 8% |
| Wednesday | 75°F | Mostly Sunny | 8 mph N | 2% |
| Wednesday Night | 54°F | Partly Cloudy | 6 mph N | 2% |
| Thursday | 76°F | Mostly Sunny | 3 to 7 mph N | 2% |
| Thursday Night | 56°F | Partly Cloudy | 6 mph N | 3% |
| Friday | 76°F | Mostly Sunny | 3 to 7 mph N | 5% |
Forecast source: National Weather Service (api.weather.gov) for Ruma (38.131, -90.000). Updated through the day.
Growing snapshot for Ruma
Last spring frost
Apr 8
First fall frost
Oct 30
Growing season
202 days
Hardiness zone
7a
More local growing data for Ruma: nearby ZIP 62242 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Kaskaskia Rvr Navigation Lock, Il (8 mi from Ruma). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.