Clear Lake, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clear Lake, a town in Branch County, Indiana.
Overnight
57°F
Clear
Clear, with a low around 57. South wind around 0 mph.
7-day forecast for Clear Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Clear | 0 mph | 0% |
| Tuesday | 84°F | Sunny | 0 to 5 mph S | 0% |
| Tuesday Night | 59°F | Mostly Clear | 0 to 5 mph S | 0% |
| Wednesday | 86°F | Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 64°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 58% |
| Thursday | 82°F | Rain Showers Likely | 5 to 10 mph SW | 72% |
| Thursday Night | 63°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SW | 72% |
| Friday | 84°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph SW | 34% |
| Friday Night | 62°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 34% |
| Saturday | 86°F | Mostly Sunny | 0 to 10 mph SW | 11% |
| Saturday Night | 66°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 24% |
| Sunday | 88°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 15 mph SW | 24% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 10 to 15 mph SW | 40% |
| Monday | 87°F | Chance Rain Showers | 10 mph SW | 40% |
Forecast source: National Weather Service (api.weather.gov) for Clear Lake (41.739, -84.834). Updated through the day.
Growing snapshot for Clear Lake
Last spring frost
Apr 30
First fall frost
Oct 16
Growing season
167 days
Hardiness zone
6a
More local growing data for Clear Lake: nearby ZIP 49255 weather · frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Angola, In (10.8 mi from Clear Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.