Gilman, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gilman, a city in Marshall County, Iowa.
Tonight
46°F
Rain Showers Likely
Rain showers likely. Cloudy. Low around 46, with temperatures rising to around 49 overnight. South southwest wind 6 to 12 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Gilman
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Rain Showers Likely | 6 to 12 mph SSW | 63% |
| Wednesday | 53°F | Chance Rain Showers | 13 to 16 mph W | 32% |
| Wednesday Night | 42°F | Mostly Cloudy then Slight Chance Rain Showers | 14 mph WSW | 22% |
| Thursday | 53°F | Rain Showers Likely | 12 mph WNW | 57% |
| Thursday Night | 39°F | Slight Chance Rain Showers then Mostly Cloudy | 9 mph NNW | 15% |
| Friday | 51°F | Partly Sunny | 5 to 9 mph N | 3% |
| Friday Night | 32°F | Partly Cloudy | 0 to 3 mph NNW | 0% |
| Saturday | 55°F | Mostly Sunny | 1 to 5 mph WSW | 1% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 4% |
| Sunday | 60°F | Sunny | 6 mph W | 5% |
| Sunday Night | 37°F | Mostly Clear | 6 mph SW | 2% |
| Monday | 64°F | Sunny | 6 to 9 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 6 mph WNW | 0% |
| Tuesday | 62°F | Mostly Sunny | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Gilman (41.879, -92.788). Updated through the day.
Growing snapshot for Gilman
Last spring frost
May 3
First fall frost
Oct 6
Growing season
155 days
Hardiness zone
5a
More local growing data for Gilman: nearby ZIP 50106 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Albion
Clemons
Ferguson
Green Mountain
Haverhill
Laurel
Le Grand
Liscomb
Marshalltown
Melbourne
Rhodes
St. Anthony
State Center
Climate data from the nearest NOAA station, Grinnell 3 Sw, Ia (11.5 mi from Gilman). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.