Agency, IA Weather & Growing Conditions
Today
89°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 4pm. Mostly sunny. High near 89, with temperatures falling to around 87 in the afternoon. West southwest wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 mph WSW | 25% |
| Tonight | 66°F | Showers And Thunderstorms Likely | 5 to 8 mph NNE | 67% |
| Wednesday | 79°F | Showers And Thunderstorms Likely | 7 mph NNE | 92% |
| Wednesday Night | 61°F | Showers And Thunderstorms Likely | 3 to 7 mph NNE | 67% |
| Thursday | 82°F | Chance Showers And Thunderstorms then Mostly Sunny | 3 mph NE | 48% |
| Thursday Night | 62°F | Mostly Clear | 2 mph E | 2% |
| Friday | 85°F | Sunny | 1 to 5 mph SSE | 8% |
| Friday Night | 66°F | Mostly Clear | 5 mph SSE | 14% |
| Saturday | 89°F | Sunny | 3 to 7 mph SSW | 14% |
| Saturday Night | 71°F | Mostly Clear | 10 mph SSW | 10% |
| Sunday | 91°F | Sunny | 9 to 13 mph SSW | 10% |
| Sunday Night | 71°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 8 to 12 mph S | 24% |
| Monday | 91°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 9 to 13 mph SSW | 24% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 12 mph S | 27% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Agency, IA
Last spring frost
Apr 23
First fall frost
Oct 14
Growing season
172 days
Hardiness zone
5b
Explore more for Agency, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Ottumwa Industrial Ap, Ia (11.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.