Monrovia, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Monrovia, a town in Morgan County, Indiana.
This Afternoon
69°F
Slight Chance Light Rain
A slight chance of rain before 3pm. Cloudy. High near 69, with temperatures falling to around 62 in the afternoon. Southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Monrovia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Slight Chance Light Rain | 14 mph SW | 16% |
| Tonight | 47°F | Mostly Cloudy | 6 to 12 mph WSW | 5% |
| Thursday | 61°F | Partly Sunny | 7 to 14 mph SW | 0% |
| Thursday Night | 44°F | Mostly Cloudy | 3 to 8 mph W | 13% |
| Friday | 53°F | Mostly Cloudy | 5 to 12 mph NNW | 10% |
| Friday Night | 35°F | Partly Cloudy | 5 to 10 mph NNW | 4% |
| Saturday | 53°F | Mostly Sunny | 5 to 8 mph NW | 0% |
| Saturday Night | 31°F | Mostly Clear | 5 mph NW | 0% |
| Sunday | 57°F | Sunny | 2 to 8 mph W | 0% |
| Sunday Night | 33°F | Mostly Clear | 2 to 6 mph W | 0% |
| Monday | 61°F | Sunny | 1 to 7 mph W | 0% |
| Monday Night | 38°F | Clear | 6 mph SW | 0% |
| Tuesday | 62°F | Sunny | 6 mph W | 2% |
| Tuesday Night | 38°F | Mostly Clear | 1 to 5 mph NW | 2% |
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 Nov 4, 2026.