Clermont, IA Weather & Growing Conditions
Tonight
61°F
Chance Showers And Thunderstorms then Showers And Thunderstorms
A chance of showers and thunderstorms before midnight, then showers and thunderstorms. Cloudy, with a low around 61. East wind around 13 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 13 mph E | 93% |
| Saturday | 73°F | Showers And Thunderstorms Likely | 7 to 10 mph S | 75% |
| Saturday Night | 57°F | Showers And Thunderstorms Likely | 7 to 13 mph N | 62% |
| Sunday | 66°F | Chance Rain Showers | 13 mph NE | 42% |
| Sunday Night | 51°F | Mostly Cloudy | 12 mph NE | 12% |
| Monday | 62°F | Chance Rain Showers | 12 mph NE | 43% |
| Monday Night | 47°F | Chance Rain Showers | 6 to 10 mph NE | 43% |
| Tuesday | 60°F | Chance Rain Showers then Partly Sunny | 8 mph NE | 32% |
| Tuesday Night | 44°F | Partly Cloudy | 1 to 5 mph NE | 4% |
| Wednesday | 65°F | Mostly Sunny | 3 mph NE | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 1 mph NE | 2% |
| Thursday | 67°F | Partly Sunny | 2 mph E | 10% |
| Thursday Night | 50°F | Partly Cloudy | 1 mph NE | 6% |
| Friday | 69°F | Mostly Sunny | 0 to 3 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Clermont, IA
Last spring frost
May 1
First fall frost
Oct 3
Growing season
153 days
Hardiness zone
5a
Explore more for Clermont, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Postville, Ia (7.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.