Magnolia, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Magnolia, a city in Harrison County, Iowa.
This Afternoon
75°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 4pm. Mostly cloudy. High near 75, with temperatures falling to around 72 in the afternoon. North northwest wind around 8 mph. Chance of precipitation is 20%.
7-day forecast for Magnolia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Slight Chance Showers And Thunderstorms | 8 mph NNW | 16% |
| Tonight | 60°F | Slight Chance Showers And Thunderstorms | 9 mph N | 15% |
| Sunday | 62°F | Chance Rain Showers | 10 mph NNE | 53% |
| Sunday Night | 55°F | Rain Showers Likely | 8 mph NE | 66% |
| Monday | 57°F | Rain Showers | 9 mph NE | 76% |
| Monday Night | 51°F | Chance Rain Showers then Mostly Cloudy | 5 to 8 mph NE | 32% |
| Tuesday | 60°F | Partly Sunny | 7 mph ENE | 3% |
| Tuesday Night | 47°F | Partly Cloudy | 5 mph E | 0% |
| Wednesday | 63°F | Partly Sunny | 6 mph ESE | 4% |
| Wednesday Night | 53°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 7 mph SE | 23% |
| Thursday | 66°F | Chance Showers And Thunderstorms | 8 mph SSE | 36% |
| Thursday Night | 58°F | Slight Chance Rain Showers | 6 mph SE | 19% |
| Friday | 68°F | Slight Chance Rain Showers | 6 mph ESE | 22% |
| Friday Night | 60°F | Chance Rain Showers | 7 mph ESE | 27% |
Forecast source: National Weather Service (api.weather.gov) for Magnolia (41.693, -95.874). Updated through the day.
Growing snapshot for Magnolia
Last spring frost
Apr 29
First fall frost
Oct 8
Growing season
162 days
Hardiness zone
5b
More local growing data for Magnolia: nearby ZIP 51550 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
California Junction
Dunlap
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Logan
Loveland
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Mondamin
Persia
Pisgah
River Sioux
Woodbine
Climate data from the nearest NOAA station, Logan, Ia (5.8 mi from Magnolia). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.