Pomeroy, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pomeroy, a city in Calhoun County, Iowa.
Today
49°F
Chance Rain Showers
A chance of rain showers. Cloudy. High near 49, with temperatures falling to around 46 in the afternoon. West northwest wind 12 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Pomeroy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 49°F | Chance Rain Showers | 12 to 15 mph WNW | 38% |
| Tonight | 41°F | Chance Rain Showers | 12 mph WNW | 47% |
| Thursday | 50°F | Chance Rain Showers then Mostly Cloudy | 8 to 12 mph NNW | 29% |
| Thursday Night | 35°F | Mostly Cloudy | 3 to 7 mph N | 0% |
| Friday | 49°F | Mostly Sunny | 0 to 3 mph N | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 3 mph SSW | 0% |
| Saturday Night | 35°F | Mostly Clear | 2 mph W | 0% |
| Sunday | 58°F | Sunny | 3 mph W | 0% |
| Sunday Night | 37°F | Mostly Clear | 3 mph SW | 0% |
| Monday | 64°F | Sunny | 3 to 7 mph WSW | 0% |
| Monday Night | 40°F | Mostly Clear | 2 mph WNW | 0% |
| Tuesday | 62°F | Mostly Sunny | 2 mph NW | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 1 mph SSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Pomeroy (42.552, -94.678). Updated through the day.
Growing snapshot for Pomeroy
Last spring frost
Apr 26
First fall frost
Oct 10
Growing season
167 days
Hardiness zone
5a
More local growing data for Pomeroy: nearby ZIP 50575 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Farnhamville
Jolley
Knierim
Lake City
Lohrville
Lytton
Manson
Rinard
Rockwell City
Somers
Twin Lakes
Climate data from the nearest NOAA station, Rockwell City, Ia (11.8 mi from Pomeroy). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.