Pacific Junction, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pacific Junction, a city in Mills County, Iowa.
Today
82°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 11am. Mostly sunny. High near 82, with temperatures falling to around 79 in the afternoon. North northwest wind 5 to 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Pacific Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph NNW | 24% |
| Tonight | 63°F | Chance Showers And Thunderstorms | 9 mph N | 51% |
| Sunday | 66°F | Chance Showers And Thunderstorms | 10 mph NNE | 36% |
| Sunday Night | 57°F | Chance Rain Showers | 6 to 9 mph NE | 38% |
| Monday | 61°F | Rain Showers Likely | 9 mph NE | 57% |
| Monday Night | 53°F | Chance Rain Showers then Mostly Cloudy | 5 to 9 mph NE | 34% |
| Tuesday | 62°F | Partly Sunny | 7 mph ENE | 3% |
| Tuesday Night | 48°F | Partly Cloudy | 2 to 6 mph E | 2% |
| Wednesday | 65°F | Mostly Sunny | 5 mph ESE | 3% |
| Wednesday Night | 53°F | Partly Cloudy then Slight Chance Rain Showers | 3 mph SE | 23% |
| Thursday | 66°F | Chance Rain Showers | 6 mph SE | 31% |
| Thursday Night | 57°F | Chance Showers And Thunderstorms | 5 mph ESE | 27% |
| Friday | 67°F | Chance Showers And Thunderstorms | 3 to 7 mph SE | 27% |
| Friday Night | 58°F | Mostly Cloudy then Slight Chance Rain Showers | 6 mph SE | 15% |
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 Sep 19, 2026.