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
83°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 5pm, then showers and thunderstorms likely. Partly sunny. High near 83, with temperatures falling to around 81 in the afternoon. North northeast wind 5 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Pacific Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Chance Showers And Thunderstorms | 5 to 12 mph NNE | 72% |
| Tonight | 64°F | Chance Showers And Thunderstorms then Patchy Smoke | 6 to 13 mph NNE | 87% |
| Wednesday | 74°F | Showers And Thunderstorms | 9 mph NE | 82% |
| Wednesday Night | 59°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 to 8 mph ENE | 16% |
| Thursday | 82°F | Mostly Sunny | 1 to 5 mph E | 2% |
| Thursday Night | 65°F | Mostly Clear | 5 mph SSE | 10% |
| Friday | 87°F | Sunny | 3 to 8 mph S | 10% |
| Friday Night | 69°F | Mostly Clear | 7 mph SSE | 3% |
| Saturday | 91°F | Sunny | 3 to 14 mph S | 1% |
| Saturday Night | 73°F | Mostly Clear | 9 to 15 mph S | 7% |
| Sunday | 93°F | Mostly Sunny | 8 to 14 mph SSE | 7% |
| Sunday Night | 73°F | Partly Cloudy | 12 to 15 mph SSE | 14% |
| Monday | 94°F | Mostly Sunny | 10 to 16 mph S | 12% |
| Monday Night | 74°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 9 to 15 mph SSE | 21% |
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 Aug 4, 2026.