Garwin, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Garwin, 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 Garwin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Showers And Thunderstorms | 6 to 9 mph SE | 79% |
| Tonight | 46°F | Showers And Thunderstorms | 7 to 10 mph WSW | 76% |
| Wednesday | 53°F | Chance Rain Showers | 12 to 16 mph W | 38% |
| Wednesday Night | 42°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 14 mph WSW | 22% |
| Thursday | 52°F | Rain Showers Likely | 12 mph NW | 62% |
| Thursday Night | 38°F | Mostly Cloudy | 9 mph N | 14% |
| Friday | 51°F | Partly Sunny | 3 to 9 mph N | 2% |
| Friday Night | 31°F | Partly Cloudy | 2 mph NW | 1% |
| Saturday | 54°F | Mostly Sunny | 1 to 5 mph WSW | 1% |
| Saturday Night | 34°F | Mostly Clear | 5 mph W | 4% |
| Sunday | 59°F | Sunny | 7 mph WNW | 5% |
| Sunday Night | 36°F | Mostly Clear | 6 mph WSW | 2% |
| Monday | 63°F | Sunny | 6 to 10 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 7 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Garwin (42.093, -92.679). Updated through the day.
Growing snapshot for Garwin
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
162 days
Hardiness zone
5a
More local growing data for Garwin: nearby ZIP 50632 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Toledo 3N, Ia (6.5 mi from Garwin). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.