Monrovia, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Monrovia, a town in Morgan County, Indiana.
Tonight
66°F
Partly Cloudy
Partly cloudy. Low around 66, with temperatures rising to around 68 overnight. East southeast wind around 7 mph.
7-day forecast for Monrovia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Partly Cloudy | 7 mph ESE | 9% |
| Saturday | 88°F | Scattered Rain Showers then Slight Chance Showers And Thunderstorms | 8 mph SSE | 45% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 7 mph S | 45% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 to 7 mph WSW | 27% |
| Sunday Night | 63°F | Showers And Thunderstorms Likely | 8 to 12 mph NNE | 57% |
| Monday | 73°F | Showers And Thunderstorms Likely | 12 mph NE | 60% |
| Monday Night | 57°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 51% |
| Tuesday | 70°F | Chance Showers And Thunderstorms | 12 mph NE | 41% |
| Tuesday Night | 57°F | Chance Showers And Thunderstorms then Mostly Cloudy | 6 to 13 mph NNE | 32% |
| Wednesday | 69°F | Mostly Cloudy | 9 mph NNE | 5% |
| Wednesday Night | 56°F | Mostly Cloudy | 5 to 9 mph N | 5% |
| Thursday | 71°F | Partly Sunny | 5 to 8 mph N | 5% |
| Thursday Night | 57°F | Mostly Cloudy | 5 to 8 mph NNE | 5% |
| Friday | 72°F | Mostly Sunny | 5 to 9 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Monrovia (39.587, -86.475). Updated through the day.
Growing snapshot for Monrovia
Last spring frost
Apr 24
First fall frost
Oct 15
Growing season
173 days
Hardiness zone
6a
More local growing data for Monrovia: nearby ZIP 46157 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Bethany
Brooklyn
Browns Crossing
Centerton
Eminence
Foxcliff Estates
Martinsville
Mooresville
Painted Hills
Paragon
Stilesville
Climate data from the nearest NOAA station, Martinsville 2 Sw, In (11.1 mi from Monrovia). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.