Lamoni, IA Weather & Growing Conditions
Today
87°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5pm. Mostly sunny. High near 87, with temperatures falling to around 85 in the afternoon. South wind around 6 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 mph S | 18% |
| Tonight | 65°F | Showers And Thunderstorms Likely | 6 to 10 mph NNE | 57% |
| Wednesday | 75°F | Showers And Thunderstorms Likely | 9 mph NE | 86% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 54% |
| Thursday | 81°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 mph ENE | 36% |
| Thursday Night | 63°F | Mostly Clear | 3 mph ESE | 5% |
| Friday | 85°F | Mostly Sunny | 3 to 7 mph SSE | 7% |
| Friday Night | 67°F | Mostly Clear | 6 mph S | 11% |
| Saturday | 89°F | Sunny | 5 to 12 mph S | 4% |
| Saturday Night | 72°F | Mostly Clear | 13 mph S | 8% |
| Sunday | 91°F | Sunny | 10 to 15 mph SSW | 8% |
| Sunday Night | 72°F | Partly Cloudy | 14 mph S | 11% |
| Monday | 92°F | Mostly Sunny | 12 to 16 mph SSW | 11% |
| Monday Night | 73°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 12 to 15 mph SSW | 21% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lamoni, IA
Last spring frost
Apr 16
First fall frost
Oct 20
Growing season
187 days
Hardiness zone
5b
Explore more for Lamoni, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Lamoni, Ia (1.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.