Hiawatha, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hiawatha, a city in Linn County, Iowa.
Today
51°F
Chance Rain Showers
A chance of rain showers. Cloudy, with a high near 51. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
7-day forecast for Hiawatha
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 51°F | Chance Rain Showers | 10 to 15 mph W | 31% |
| Tonight | 45°F | Slight Chance Rain Showers | 10 to 15 mph W | 24% |
| Thursday | 53°F | Chance Rain Showers | 10 mph W | 40% |
| Thursday Night | 39°F | Mostly Cloudy | 10 mph N | 12% |
| Friday | 49°F | Mostly Sunny | 5 to 10 mph N | 2% |
| Friday Night | 30°F | Mostly Clear | 0 to 5 mph N | 0% |
| Saturday | 51°F | Sunny | 0 to 5 mph NW | 1% |
| Saturday Night | 34°F | Mostly Clear | 5 mph W | 1% |
| Sunday | 56°F | Sunny | 5 mph W | 3% |
| Sunday Night | 36°F | Clear | 0 to 5 mph SW | 0% |
| Monday | 62°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 61°F | Sunny | 5 mph NW | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 0 to 5 mph N | 1% |
Forecast source: National Weather Service (api.weather.gov) for Hiawatha (42.056, -91.690). Updated through the day.
Growing snapshot for Hiawatha
Last spring frost
Apr 28
First fall frost
Oct 12
Growing season
166 days
Hardiness zone
5a
More local growing data for Hiawatha: nearby ZIP 52233 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Alburnett
Bertram
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Central City
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Ely
Fairfax
Marion
Mount Vernon
Palo
Prairieburg
Robins
Springville
Walker
Climate data from the nearest NOAA station, Cedar Rapids #1, Ia (5.1 mi from Hiawatha). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.