Allison, IA Weather & Growing Conditions
This Afternoon
70°F
Mostly Cloudy
Mostly cloudy. High near 70, with temperatures falling to around 67 in the afternoon. Southeast wind around 13 mph, with gusts as high as 24 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Cloudy | 13 mph SE | 11% |
| Tonight | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 8 to 12 mph SE | 73% |
| Saturday | 75°F | Chance Showers And Thunderstorms | 8 mph WSW | 46% |
| Saturday Night | 58°F | Chance Showers And Thunderstorms | 8 to 12 mph NNE | 40% |
| Sunday | 65°F | Chance Rain Showers | 12 to 15 mph NE | 34% |
| Sunday Night | 52°F | Chance Rain Showers | 10 to 14 mph ENE | 25% |
| Monday | 60°F | Chance Rain Showers | 14 mph ENE | 51% |
| Monday Night | 48°F | Chance Rain Showers | 7 to 12 mph ENE | 51% |
| Tuesday | 60°F | Slight Chance Rain Showers then Partly Sunny | 9 mph ENE | 24% |
| Tuesday Night | 45°F | Partly Cloudy | 2 to 6 mph ENE | 3% |
| Wednesday | 64°F | Mostly Sunny | 5 mph E | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 2 mph ESE | 5% |
| Thursday | 66°F | Partly Sunny | 3 mph SE | 14% |
| Thursday Night | 52°F | Mostly Cloudy | 2 mph SE | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Allison, IA
Last spring frost
Apr 27
First fall frost
Oct 8
Growing season
165 days
Hardiness zone
5a
Explore more for Allison, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Allison, Ia (0.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.