Magnolia, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Magnolia, a city in Harrison County, Iowa.
Overnight
40°F
Cloudy
Cloudy. Low around 40, with temperatures rising to around 43 overnight. Northwest wind around 15 mph, with gusts as high as 25 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Magnolia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Cloudy | 15 mph NW | 14% |
| Wednesday | 48°F | Chance Rain Showers | 14 mph WNW | 33% |
| Wednesday Night | 39°F | Slight Chance Rain Showers | 12 mph WNW | 21% |
| Thursday | 49°F | Slight Chance Rain Showers then Mostly Cloudy | 12 mph NNW | 16% |
| Thursday Night | 35°F | Mostly Cloudy | 5 to 8 mph N | 0% |
| Friday | 49°F | Mostly Sunny | 0 to 5 mph N | 1% |
| Friday Night | 31°F | Partly Cloudy | 2 mph ESE | 0% |
| Saturday | 53°F | Mostly Sunny | 5 mph SSW | 0% |
| Saturday Night | 35°F | Mostly Clear | 2 mph WSW | 0% |
| Sunday | 58°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 38°F | Clear | 6 mph S | 0% |
| Monday | 63°F | Sunny | 5 to 8 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 3 mph NW | 0% |
| Tuesday | 62°F | Mostly Sunny | 5 mph NNW | 0% |
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
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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 Nov 4, 2026.