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Wall Lake, IA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Wall Lake, a city in Sac County, Iowa.

Overnight
66°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4am, then showers and thunderstorms likely between 4am and 5am, then patchy fog and a chance of showers and thunderstorms. Cloudy. Low around 66, with temperatures rising to around 68 overnight. West wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Wall Lake

WhenTempForecastWindPrecip
Overnight 66°F Chance Showers And Thunderstorms 5 mph W 55%
Saturday 76°F Patchy Fog then Mostly Cloudy 7 mph NNW 40%
Saturday Night 59°F Slight Chance Rain Showers 9 mph NNE 21%
Sunday 66°F Slight Chance Drizzle then Chance Rain Showers 12 mph NE 43%
Sunday Night 54°F Rain Showers Likely 9 mph ENE 57%
Monday 61°F Rain Showers Likely 9 mph ENE 59%
Monday Night 49°F Chance Rain Showers then Mostly Cloudy 3 to 7 mph ENE 46%
Tuesday 62°F Partly Sunny 6 mph ENE 12%
Tuesday Night 45°F Partly Cloudy 3 mph ESE 1%
Wednesday 66°F Mostly Sunny 1 to 5 mph SE 2%
Wednesday Night 50°F Partly Cloudy then Slight Chance Rain Showers 2 mph SE 20%
Thursday 68°F Slight Chance Rain Showers 1 to 5 mph SE 20%
Thursday Night 54°F Mostly Cloudy 2 mph SE 13%
Friday 70°F Mostly Cloudy 1 to 6 mph SE 13%

Forecast source: National Weather Service (api.weather.gov) for Wall Lake (42.267, -95.093). Updated through the day.

Growing snapshot for Wall Lake

Last spring frost
Apr 30
First fall frost
Oct 6
Growing season
158 days
Hardiness zone
5a

More local growing data for Wall Lake: nearby ZIP 51466 weather · frost dates · planting calendar · Iowa frost dates

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Climate data from the nearest NOAA station, Sac City, Ia (13.5 mi from Wall Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.