Morrison, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Morrison, a city in Grundy County, Iowa.
Tonight
47°F
Chance Rain Showers
A chance of rain showers. Cloudy. Low around 47, with temperatures rising to around 51 overnight. Southwest wind 7 to 12 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Morrison
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Chance Rain Showers | 7 to 12 mph SW | 38% |
| Wednesday | 53°F | Chance Rain Showers | 13 to 20 mph W | 42% |
| Wednesday Night | 42°F | Chance Rain Showers | 12 to 15 mph W | 49% |
| Thursday | 52°F | Rain Showers Likely | 13 mph NW | 65% |
| Thursday Night | 37°F | Slight Chance Rain Showers then Mostly Cloudy | 8 to 12 mph N | 16% |
| Friday | 50°F | Partly Sunny | 5 to 9 mph N | 2% |
| Friday Night | 31°F | Partly Cloudy | 0 to 3 mph NNW | 1% |
| Saturday | 54°F | Mostly Sunny | 0 to 5 mph WSW | 2% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 4% |
| Sunday | 59°F | Sunny | 5 to 8 mph WNW | 5% |
| Sunday Night | 37°F | Mostly Clear | 7 mph SW | 2% |
| Monday | 62°F | Sunny | 7 to 13 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 7 mph WNW | 0% |
| Tuesday | 61°F | Mostly Sunny | 7 mph WNW | 0% |
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 Nov 4, 2026.