Hiawatha, IA Weather & Growing Conditions
Overnight
63°F
Patchy Fog
Patchy fog and occasional showers and thunderstorms. Cloudy, with a low around 63. East wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Patchy Fog | 5 mph E | 78% |
| Saturday | 81°F | Patchy Fog then Chance Showers And Thunderstorms | 5 to 10 mph S | 98% |
| Saturday Night | 62°F | Showers And Thunderstorms Likely | 5 to 10 mph NW | 70% |
| Sunday | 68°F | Chance Rain Showers | 10 to 15 mph NE | 51% |
| Sunday Night | 55°F | Chance Rain Showers | 10 to 15 mph NE | 46% |
| Monday | 64°F | Chance Rain Showers | 15 mph NE | 47% |
| Monday Night | 50°F | Chance Rain Showers | 10 to 15 mph NE | 38% |
| Tuesday | 63°F | Chance Rain Showers then Partly Sunny | 10 mph NE | 31% |
| Tuesday Night | 46°F | Mostly Clear | 5 to 10 mph NE | 5% |
| Wednesday | 66°F | Sunny | 5 mph NE | 0% |
| Wednesday Night | 51°F | Partly Cloudy | 5 mph NE | 1% |
| Thursday | 68°F | Mostly Sunny | 5 mph E | 7% |
| Thursday Night | 53°F | Partly Cloudy | 0 to 5 mph E | 5% |
| Friday | 70°F | Mostly Sunny | 5 mph E | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hiawatha, IA
Last spring frost
Apr 28
First fall frost
Oct 12
Growing season
166 days
Hardiness zone
5a
Explore more for Hiawatha, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Cedar Rapids #1, Ia (8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.