Morrison, IA Weather & Growing Conditions
Tonight
66°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before midnight, then patchy fog and a chance of showers and thunderstorms between midnight and 1am, then patchy fog and showers and thunderstorms likely. Some of the storms could produce heavy rain. Cloudy. Low around 66, with temperatures rising to around 68 overnight. Southeast wind 8 to 13 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Chance Showers And Thunderstorms | 8 to 13 mph SE | 74% |
| Saturday | 79°F | Showers And Thunderstorms Likely | 8 mph SW | 63% |
| Saturday Night | 60°F | Chance Showers And Thunderstorms | 12 mph N | 34% |
| Sunday | 67°F | Rain Showers Likely | 12 to 16 mph NE | 55% |
| Sunday Night | 54°F | Chance Rain Showers | 12 to 15 mph ENE | 32% |
| Monday | 62°F | Rain Showers Likely | 14 mph ENE | 56% |
| Monday Night | 49°F | Rain Showers Likely | 8 to 13 mph NE | 56% |
| Tuesday | 61°F | Chance Rain Showers then Partly Sunny | 9 mph ENE | 29% |
| Tuesday Night | 46°F | Partly Cloudy | 2 to 7 mph ENE | 4% |
| Wednesday | 65°F | Sunny | 5 mph ENE | 0% |
| Wednesday Night | 50°F | Partly Cloudy | 3 mph E | 4% |
| Thursday | 67°F | Partly Sunny | 3 mph SE | 13% |
| Thursday Night | 53°F | Partly Cloudy | 2 mph SE | 9% |
| Friday | 68°F | Mostly Sunny | 5 mph E | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Morrison, IA
Last spring frost
Apr 29
First fall frost
Oct 9
Growing season
160 days
Hardiness zone
5a
Explore more for Morrison, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Grundy Ctr, Ia (4.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.