Glenwood, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glenwood, a city in Mills County, Iowa.
Today
81°F
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms. Mostly sunny. High near 81, with temperatures falling to around 78 in the afternoon. Northwest wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Glenwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 8 mph NW | 25% |
| Tonight | 63°F | Chance Showers And Thunderstorms | 10 mph N | 52% |
| Sunday | 65°F | Chance Showers And Thunderstorms | 10 mph NNE | 37% |
| Sunday Night | 57°F | Chance Rain Showers | 10 mph NE | 37% |
| Monday | 60°F | Rain Showers Likely | 10 mph NE | 57% |
| Monday Night | 52°F | Chance Rain Showers then Mostly Cloudy | 6 to 9 mph NE | 39% |
| Tuesday | 60°F | Partly Sunny | 8 mph ENE | 3% |
| Tuesday Night | 48°F | Partly Cloudy | 6 mph E | 2% |
| Wednesday | 64°F | Mostly Sunny | 6 mph ESE | 3% |
| Wednesday Night | 53°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SE | 23% |
| Thursday | 65°F | Chance Rain Showers | 6 mph SE | 31% |
| Thursday Night | 57°F | Chance Showers And Thunderstorms | 5 mph ESE | 26% |
| Friday | 66°F | Chance Showers And Thunderstorms | 7 mph SE | 26% |
| Friday Night | 58°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph SE | 15% |
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 19, 2026.