Boone, IA Weather & Growing Conditions
Tonight
67°F
Patchy Fog
Patchy fog and a chance of showers and thunderstorms before 4am, then showers and thunderstorms likely between 4am and 5am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South southeast wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Patchy Fog | 10 mph SSE | 55% |
| Saturday | 78°F | Chance Showers And Thunderstorms then Patchy Fog | 8 mph WNW | 43% |
| Saturday Night | 61°F | Chance Showers And Thunderstorms | 10 mph N | 28% |
| Sunday | 66°F | Chance Rain Showers | 10 to 14 mph NE | 43% |
| Sunday Night | 56°F | Chance Rain Showers | 12 mph ENE | 35% |
| Monday | 60°F | Rain Showers Likely | 12 mph ENE | 66% |
| Monday Night | 51°F | Rain Showers Likely | 7 to 10 mph NE | 63% |
| Tuesday | 60°F | Slight Chance Rain Showers then Mostly Cloudy | 8 mph ENE | 16% |
| Tuesday Night | 47°F | Partly Cloudy | 6 mph ENE | 2% |
| Wednesday | 64°F | Mostly Sunny | 5 mph E | 3% |
| Wednesday Night | 51°F | Partly Cloudy | 2 mph ESE | 5% |
| Thursday | 66°F | Slight Chance Rain Showers | 3 mph SE | 20% |
| Thursday Night | 55°F | Mostly Cloudy | 2 mph SE | 9% |
| Friday | 67°F | Slight Chance Rain Showers | 2 to 6 mph ESE | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Boone, IA
Last spring frost
Apr 28
First fall frost
Oct 12
Growing season
165 days
Hardiness zone
5a
Explore more for Boone, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Boone, Ia (3.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.