Garwin, IA Weather & Growing Conditions
Overnight
46°F
Slight Chance Rain Showers
A slight chance of rain showers. Cloudy. Low around 46, with temperatures rising to around 49 overnight. West wind around 13 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Slight Chance Rain Showers | 13 mph W | 19% |
| Wednesday | 53°F | Slight Chance Rain Showers | 13 to 16 mph W | 20% |
| Wednesday Night | 42°F | Cloudy then Slight Chance Rain Showers | 14 mph W | 20% |
| Thursday | 54°F | Chance Rain Showers | 12 mph NW | 41% |
| Thursday Night | 37°F | Mostly Cloudy | 7 to 10 mph N | 13% |
| Friday | 49°F | Mostly Sunny | 3 to 8 mph N | 4% |
| Friday Night | 28°F | Partly Cloudy | 2 mph N | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 3 mph WNW | 0% |
| Saturday Night | 33°F | Mostly Clear | 5 mph W | 1% |
| Sunday | 57°F | Sunny | 6 mph W | 2% |
| Sunday Night | 35°F | Clear | 5 mph SW | 0% |
| Monday | 63°F | Sunny | 5 to 9 mph SW | 0% |
| Monday Night | 39°F | Clear | 6 mph W | 0% |
| Tuesday | 63°F | Sunny | 3 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Garwin, IA
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
162 days
Hardiness zone
5a
Explore more for Garwin, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Toledo 3N, Ia (6.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.