Merom, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Merom, a town in Sullivan County, Indiana.
This Afternoon
93°F
Mostly Sunny
Mostly sunny. High near 93, with temperatures falling to around 91 in the afternoon. Heat index values as high as 102. East southeast wind around 5 mph.
7-day forecast for Merom
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 93°F | Mostly Sunny | 5 mph ESE | 14% |
| Tonight | 69°F | Scattered Showers And Thunderstorms then Partly Cloudy | 5 to 8 mph E | 36% |
| Saturday | 94°F | Mostly Sunny then Chance Showers And Thunderstorms | 7 mph S | 26% |
| Saturday Night | 71°F | Mostly Cloudy | 5 mph S | 11% |
| Sunday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph W | 20% |
| Sunday Night | 65°F | Chance Showers And Thunderstorms | 8 mph NNE | 38% |
| Monday | 80°F | Showers And Thunderstorms Likely | 7 to 10 mph NE | 57% |
| Monday Night | 59°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 8 to 13 mph NNE | 57% |
| Tuesday | 74°F | Chance Showers And Thunderstorms | 12 mph NNE | 40% |
| Tuesday Night | 56°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 6 to 12 mph NNE | 15% |
| Wednesday | 73°F | Partly Sunny | 6 to 9 mph NNE | 5% |
| Wednesday Night | 55°F | Mostly Cloudy | 3 to 9 mph N | 5% |
| Thursday | 74°F | Mostly Sunny | 3 to 9 mph N | 4% |
| Thursday Night | 57°F | Partly Cloudy | 3 to 9 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Merom (39.056, -87.567). Updated through the day.
Growing snapshot for Merom
Last spring frost
Apr 12
First fall frost
Oct 22
Growing season
193 days
Hardiness zone
6b
More local growing data for Merom: nearby ZIP 47861 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Carlisle
Cass
Dugger
Fairbanks
Farmersburg
Graysville
Hymera
New Lebanon
Paxton
Pleasantville
Shelburn
Sullivan
Climate data from the nearest NOAA station, Palestine, Il (5.4 mi from Merom). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.