River Forest, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for River Forest, a town in Madison County, Indiana.
This Afternoon
83°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 3pm, then showers and thunderstorms likely between 3pm and 4pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 83, with temperatures falling to around 81 in the afternoon. Southwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for River Forest
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 83°F | Chance Showers And Thunderstorms | 8 mph SW | 63% |
| Tonight | 68°F | Chance Showers And Thunderstorms | 5 mph SSE | 30% |
| Sunday | 81°F | Chance Showers And Thunderstorms | 2 to 8 mph NW | 67% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 9 to 14 mph NE | 72% |
| Monday | 68°F | Showers And Thunderstorms Likely | 14 mph ENE | 57% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 17 mph NE | 49% |
| Tuesday | 68°F | Chance Showers And Thunderstorms | 14 mph NE | 25% |
| Tuesday Night | 54°F | Chance Showers And Thunderstorms | 7 to 15 mph NE | 34% |
| Wednesday | 68°F | Slight Chance Rain Showers | 9 mph NNE | 22% |
| Wednesday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 9 mph NNE | 19% |
| Thursday | 69°F | Mostly Cloudy | 6 to 9 mph NNE | 6% |
| Thursday Night | 53°F | Mostly Cloudy | 3 to 9 mph NNE | 6% |
| Friday | 71°F | Mostly Sunny | 5 to 9 mph NE | 5% |
| Friday Night | 52°F | Partly Cloudy | 2 to 9 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for River Forest (40.111, -85.729). Updated through the day.
Growing snapshot for River Forest
Last spring frost
Apr 19
First fall frost
Oct 23
Growing season
186 days
Hardiness zone
6a
More local growing data for River Forest: nearby ZIP 46011 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Alexandria
Anderson
Chesterfield
Country Club Heights
Edgewood
Elwood
Fishersburg
Frankton
Ingalls
Lapel
Markleville
Orestes
Pendleton
Perkinsville
Summitville
Woodlawn Heights
Climate data from the nearest NOAA station, Anderson Sewage Plt, In (2.7 mi from River Forest). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.