Pacific Junction, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pacific Junction, a city in Mills County, Iowa.
Tonight
44°F
Chance Rain Showers then Cloudy
A chance of rain showers before 11pm. Cloudy. Low around 44, with temperatures rising to around 47 overnight. Northwest wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Pacific Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 44°F | Chance Rain Showers then Cloudy | 13 to 16 mph NW | 37% |
| Wednesday | 52°F | Mostly Cloudy | 10 to 14 mph WNW | 11% |
| Wednesday Night | 42°F | Mostly Cloudy then Slight Chance Rain Showers | 9 mph WNW | 20% |
| Thursday | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 12 mph NW | 19% |
| Thursday Night | 39°F | Mostly Cloudy | 5 to 8 mph NNW | 2% |
| Friday | 52°F | Mostly Sunny | 1 to 5 mph N | 2% |
| Friday Night | 34°F | Partly Cloudy | 1 mph E | 0% |
| Saturday | 56°F | Mostly Sunny | 1 to 5 mph SSW | 0% |
| Saturday Night | 37°F | Mostly Clear | 2 mph WSW | 0% |
| Sunday | 61°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 41°F | Mostly Clear | 5 mph SSW | 0% |
| Monday | 67°F | Sunny | 5 to 8 mph SW | 0% |
| Monday Night | 43°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 66°F | Mostly Sunny | 5 mph NNE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Pacific Junction (41.018, -95.799). Updated through the day.
Growing snapshot for Pacific Junction
Last spring frost
Apr 23
First fall frost
Oct 11
Growing season
170 days
Hardiness zone
5b
More local growing data for Pacific Junction: nearby ZIP 51561 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Glenwood 3Sw, Ia (1.9 mi from Pacific Junction). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.