Belle Plaine, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Belle Plaine, a city in Benton County, Iowa.
Today
83°F
Partly Sunny then Chance Showers And Thunderstorms
A slight chance of rain showers between noon and 1pm, then a chance of showers and thunderstorms. Partly sunny. High near 83, with temperatures falling to around 80 in the afternoon. West wind around 5 mph. Chance of precipitation is 50%.
7-day forecast for Belle Plaine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Partly Sunny then Chance Showers And Thunderstorms | 5 mph W | 48% |
| Tonight | 62°F | Showers And Thunderstorms Likely | 5 to 10 mph N | 81% |
| Wednesday | 75°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph NE | 70% |
| Wednesday Night | 55°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 31% |
| Thursday | 81°F | Sunny | 0 to 5 mph NE | 5% |
| Thursday Night | 58°F | Mostly Clear | 0 mph | 1% |
| Friday | 84°F | Sunny | 0 to 5 mph SE | 4% |
| Friday Night | 64°F | Mostly Clear | 5 mph S | 13% |
| Saturday | 88°F | Sunny | 5 mph S | 9% |
| Saturday Night | 69°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 15% |
| Sunday | 88°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 5 to 10 mph S | 15% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 36% |
| Monday | 88°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 36% |
| Monday Night | 69°F | Slight Chance Showers And Thunderstorms | 10 mph E | 32% |
Forecast source: National Weather Service (api.weather.gov) for Belle Plaine (41.896, -92.276). Updated through the day.
Growing snapshot for Belle Plaine
Last spring frost
Apr 28
First fall frost
Oct 10
Growing season
165 days
Hardiness zone
5a
More local growing data for Belle Plaine: nearby ZIP 52208 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
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Urbana
Van Horne
Vinton
Walford
Watkins
Climate data from the nearest NOAA station, Belle Plaine, Ia (1.1 mi from Belle Plaine). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.