Morrison, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Morrison, a city in Grundy County, Iowa.
This Afternoon
77°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. High near 77, with temperatures falling to around 73 in the afternoon. North wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Morrison
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Chance Showers And Thunderstorms | 6 mph N | 53% |
| Tonight | 59°F | Chance Showers And Thunderstorms | 7 to 12 mph N | 40% |
| Sunday | 66°F | Chance Rain Showers then Chance Drizzle | 15 mph NE | 46% |
| Sunday Night | 53°F | Chance Drizzle then Chance Rain Showers | 14 mph ENE | 48% |
| Monday | 60°F | Rain Showers Likely | 14 mph NE | 72% |
| Monday Night | 49°F | Rain Showers Likely | 8 to 13 mph NE | 72% |
| Tuesday | 61°F | Chance Rain Showers then Partly Sunny | 9 mph NE | 27% |
| Tuesday Night | 46°F | Partly Cloudy | 3 to 8 mph NE | 4% |
| Wednesday | 64°F | Mostly Sunny | 6 mph ENE | 1% |
| Wednesday Night | 50°F | Partly Cloudy | 1 to 5 mph E | 4% |
| Thursday | 66°F | Slight Chance Rain Showers | 3 mph ESE | 17% |
| Thursday Night | 54°F | Slight Chance Rain Showers | 3 mph ESE | 21% |
| Friday | 70°F | Slight Chance Rain Showers then Partly Sunny | 1 to 5 mph E | 16% |
| Friday Night | 56°F | Mostly Cloudy | 3 mph E | 8% |
Forecast source: National Weather Service (api.weather.gov) for Morrison (42.343, -92.673). Updated through the day.
Growing snapshot for Morrison
Last spring frost
Apr 29
First fall frost
Oct 9
Growing season
160 days
Hardiness zone
5a
More local growing data for Morrison: nearby ZIP 50657 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grundy Ctr, Ia (4.6 mi from Morrison). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.