Allison, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Allison, a city in Butler County, Iowa.
This Afternoon
72°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 72, with temperatures falling to around 69 in the afternoon. Northeast wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Allison
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Chance Showers And Thunderstorms | 6 mph NE | 54% |
| Tonight | 58°F | Chance Showers And Thunderstorms | 7 to 13 mph N | 33% |
| Sunday | 66°F | Chance Rain Showers then Chance Drizzle | 15 mph NE | 35% |
| Sunday Night | 52°F | Slight Chance Drizzle then Chance Rain Showers | 14 mph ENE | 44% |
| Monday | 59°F | Rain Showers Likely | 14 mph NE | 71% |
| Monday Night | 47°F | Rain Showers Likely | 7 to 12 mph NE | 71% |
| Tuesday | 60°F | Chance Rain Showers then Partly Sunny | 9 mph ENE | 26% |
| Tuesday Night | 45°F | Partly Cloudy | 3 to 7 mph ENE | 2% |
| Wednesday | 64°F | Mostly Sunny | 6 mph ENE | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 3 mph E | 5% |
| Thursday | 66°F | Slight Chance Rain Showers | 3 mph SE | 19% |
| Thursday Night | 53°F | Slight Chance Rain Showers | 3 mph ESE | 22% |
| Friday | 69°F | Slight Chance Rain Showers | 5 mph ESE | 15% |
| Friday Night | 55°F | Mostly Cloudy | 3 mph ESE | 8% |
Forecast source: National Weather Service (api.weather.gov) for Allison (42.752, -92.796). Updated through the day.
Growing snapshot for Allison
Last spring frost
Apr 27
First fall frost
Oct 8
Growing season
165 days
Hardiness zone
5a
More local growing data for Allison: nearby ZIP 50602 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Allison, Ia (0.9 mi from Allison). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.