Riverton, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Riverton, a village in Sangamon County, Illinois.
This Afternoon
72°F
Light Rain
Rain and a slight chance of thunderstorms. Cloudy. High near 72, with temperatures falling to around 67 in the afternoon. South wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Riverton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Light Rain | 20 mph S | 82% |
| Tonight | 53°F | Rain | 12 to 18 mph SSW | 80% |
| Wednesday | 60°F | Chance Rain Showers then Mostly Cloudy | 12 to 15 mph SW | 13% |
| Wednesday Night | 44°F | Mostly Cloudy | 9 mph SW | 1% |
| Thursday | 61°F | Mostly Sunny | 8 to 13 mph WSW | 4% |
| Thursday Night | 42°F | Mostly Cloudy then Slight Chance Light Rain | 6 mph NW | 22% |
| Friday | 55°F | Partly Sunny | 6 to 10 mph NNW | 12% |
| Friday Night | 36°F | Mostly Cloudy | 1 to 8 mph N | 4% |
| Saturday | 54°F | Mostly Sunny | 1 to 5 mph NW | 1% |
| Saturday Night | 34°F | Partly Cloudy | 2 mph W | 1% |
| Sunday | 60°F | Sunny | 2 to 8 mph W | 7% |
| Sunday Night | 34°F | Mostly Clear | 2 to 6 mph WNW | 5% |
| Monday | 64°F | Sunny | 2 to 9 mph SW | 2% |
| Monday Night | 39°F | Mostly Clear | 3 to 7 mph WSW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Riverton (39.846, -89.536). Updated through the day.
Growing snapshot for Riverton
Last spring frost
Apr 14
First fall frost
Oct 20
Growing season
187 days
Hardiness zone
6a
More local growing data for Riverton: nearby ZIP 62561 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Springfield Capital Ap, Il (9.6 mi from Riverton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.