Lynnville, IA Weather & Growing Conditions
Overnight
68°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Southeast wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Chance Showers And Thunderstorms | 8 mph SE | 49% |
| Saturday | 82°F | Chance Showers And Thunderstorms | 8 mph SSW | 47% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms | 5 to 8 mph NNW | 53% |
| Sunday | 68°F | Showers And Thunderstorms Likely | 8 to 13 mph NNE | 65% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 13 mph NE | 65% |
| Monday | 61°F | Rain Showers Likely | 13 mph ENE | 63% |
| Monday Night | 52°F | Rain Showers Likely | 10 mph NE | 63% |
| Tuesday | 60°F | Slight Chance Rain Showers then Mostly Cloudy | 9 mph NE | 21% |
| Tuesday Night | 48°F | Partly Cloudy | 6 mph NE | 4% |
| Wednesday | 65°F | Mostly Sunny | 5 mph NE | 1% |
| Wednesday Night | 51°F | Partly Cloudy | 2 mph E | 3% |
| Thursday | 67°F | Partly Sunny | 3 mph ESE | 10% |
| Thursday Night | 54°F | Partly Cloudy | 2 mph E | 8% |
| Friday | 67°F | Mostly Sunny | 5 mph E | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lynnville, IA
Last spring frost
May 3
First fall frost
Oct 6
Growing season
155 days
Hardiness zone
5b
Explore more for Lynnville, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Grinnell 3 Sw, Ia (10.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.