Glenwood, IA Weather & Growing Conditions
Today
82°F
Partly Sunny then Chance Showers And Thunderstorms
A slight chance of rain showers between 2pm and 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers and thunderstorms likely. Partly sunny. High near 82, with temperatures falling to around 80 in the afternoon. North wind 6 to 13 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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Partly Sunny then Chance Showers And Thunderstorms | 6 to 13 mph N | 73% |
| Tonight | 63°F | Chance Showers And Thunderstorms then Patchy Smoke | 8 to 13 mph NNE | 88% |
| Wednesday | 73°F | Showers And Thunderstorms | 9 mph NE | 83% |
| Wednesday Night | 59°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 8 mph ENE | 19% |
| Thursday | 81°F | Mostly Sunny | 5 mph E | 2% |
| Thursday Night | 64°F | Mostly Clear | 5 mph SE | 9% |
| Friday | 86°F | Sunny | 5 to 9 mph S | 9% |
| Friday Night | 69°F | Mostly Clear | 8 mph SSE | 4% |
| Saturday | 90°F | Sunny | 5 to 14 mph S | 1% |
| Saturday Night | 73°F | Mostly Clear | 10 to 14 mph S | 8% |
| Sunday | 92°F | Mostly Sunny | 9 to 14 mph S | 8% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms | 15 mph SSE | 15% |
| Monday | 93°F | Mostly Sunny | 12 to 16 mph S | 13% |
| Monday Night | 74°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 to 15 mph SSE | 22% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Glenwood, IA
Last spring frost
Apr 23
First fall frost
Oct 11
Growing season
170 days
Hardiness zone
6a
Explore more for Glenwood, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Glenwood 3Sw, Ia (3.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.