Harman US

Waterville, IA Weather & Growing Conditions

This Afternoon
69°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Cloudy. High near 69, with temperatures falling to around 66 in the afternoon. East wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 69°F Chance Showers And Thunderstorms 5 mph E 54%
Tonight 57°F Showers And Thunderstorms Likely 5 to 8 mph N 66%
Sunday 69°F Slight Chance Rain Showers then Mostly Cloudy 10 mph NE 21%
Sunday Night 51°F Mostly Cloudy 9 mph NE 12%
Monday 63°F Slight Chance Rain Showers 6 to 9 mph NE 21%
Monday Night 46°F Mostly Cloudy 2 to 7 mph NE 12%
Tuesday 62°F Mostly Sunny 2 to 7 mph NE 12%
Tuesday Night 43°F Mostly Clear 1 to 5 mph NE 2%
Wednesday 66°F Sunny 3 mph NE 1%
Wednesday Night 47°F Mostly Clear 2 mph NE 3%
Thursday 67°F Mostly Sunny 2 mph NE 6%
Thursday Night 50°F Partly Cloudy 1 mph NE 3%
Friday 70°F Mostly Sunny 2 mph E 4%
Friday Night 50°F Partly Cloudy 1 mph NE 4%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Waterville, IA

Last spring frost
May 2
First fall frost
Oct 11
Growing season
161 days
Hardiness zone
5a

Explore more for Waterville, IA: full frost dates · planting calendar · Iowa frost dates

Climate data from the nearest NOAA station, Waukon, Ia (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.