Gladbrook, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gladbrook, a city in Tama County, Iowa.
This Afternoon
68°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. High near 68, with temperatures falling to around 63 in the afternoon. Southeast wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Gladbrook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Showers And Thunderstorms | 6 to 9 mph SE | 77% |
| Tonight | 46°F | Showers And Thunderstorms | 7 to 12 mph WSW | 81% |
| Wednesday | 53°F | Chance Rain Showers | 12 to 17 mph W | 40% |
| Wednesday Night | 42°F | Cloudy then Chance Rain Showers | 14 mph WSW | 31% |
| Thursday | 52°F | Rain Showers Likely | 12 mph NW | 64% |
| Thursday Night | 38°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph N | 15% |
| Friday | 50°F | Partly Sunny | 5 to 9 mph N | 2% |
| Friday Night | 31°F | Partly Cloudy | 2 mph NNW | 1% |
| Saturday | 54°F | Mostly Sunny | 1 to 5 mph WSW | 2% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 4% |
| Sunday | 59°F | Sunny | 7 mph WNW | 5% |
| Sunday Night | 37°F | Mostly Clear | 6 mph SW | 2% |
| Monday | 63°F | Sunny | 6 to 12 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 7 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Gladbrook (42.186, -92.715). Updated through the day.
Growing snapshot for Gladbrook
Last spring frost
Apr 29
First fall frost
Oct 9
Growing season
160 days
Hardiness zone
5a
More local growing data for Gladbrook: nearby ZIP 50635 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grundy Ctr, Ia (11.7 mi from Gladbrook). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.