Glenwood, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glenwood, a city in Mills County, Iowa.
Tonight
62°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 10pm, then showers and thunderstorms likely between 10pm and 11pm, then a chance of showers and thunderstorms between 11pm and 1am, then a chance of showers and thunderstorms between 1am and 3am, then a slight chance of showers and thunderstorms. Mostly cloudy. Low around 62, with temperatures rising to around 64 overnight. North wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Glenwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Chance Showers And Thunderstorms | 10 mph N | 59% |
| Sunday | 65°F | Chance Rain Showers | 12 mph NNE | 35% |
| Sunday Night | 57°F | Rain Showers Likely | 9 mph NNE | 55% |
| Monday | 59°F | Rain Showers Likely | 10 mph NNE | 60% |
| Monday Night | 52°F | Chance Rain Showers then Mostly Cloudy | 6 to 9 mph NNE | 26% |
| Tuesday | 61°F | Mostly Cloudy | 8 mph NE | 4% |
| Tuesday Night | 48°F | Mostly Cloudy | 6 mph E | 2% |
| Wednesday | 63°F | Partly Sunny | 6 mph ESE | 2% |
| Wednesday Night | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 6 mph SE | 20% |
| Thursday | 66°F | Chance Rain Showers | 8 mph SE | 37% |
| Thursday Night | 59°F | Slight Chance Rain Showers | 6 mph SE | 24% |
| Friday | 69°F | Slight Chance Rain Showers | 6 mph ESE | 22% |
| Friday Night | 61°F | Chance Rain Showers | 7 mph ESE | 27% |
| Saturday | 69°F | Chance Rain Showers | 10 mph SE | 33% |
Forecast source: National Weather Service (api.weather.gov) for Glenwood (41.045, -95.741). Updated through the day.
Growing snapshot for Glenwood
Last spring frost
Apr 23
First fall frost
Oct 11
Growing season
170 days
Hardiness zone
6a
More local growing data for Glenwood: nearby ZIP 51534 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Glenwood 3Sw, Ia (3.6 mi from Glenwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.