Gilman, IA Weather & Growing Conditions
Overnight
67°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southeast wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 67°F | Chance Showers And Thunderstorms | 8 mph SE | 38% |
| Saturday | 80°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 9 mph SSW | 59% |
| Saturday Night | 61°F | Chance Showers And Thunderstorms | 9 mph N | 40% |
| Sunday | 66°F | Chance Rain Showers | 9 to 14 mph NNE | 44% |
| Sunday Night | 55°F | Chance Rain Showers | 13 mph NE | 48% |
| Monday | 61°F | Chance Rain Showers | 12 mph NE | 53% |
| Monday Night | 50°F | Chance Rain Showers | 10 mph NE | 53% |
| Tuesday | 60°F | Slight Chance Rain Showers then Partly Sunny | 8 mph ENE | 23% |
| Tuesday Night | 45°F | Partly Cloudy | 3 to 7 mph ENE | 3% |
| Wednesday | 65°F | Sunny | 5 mph ENE | 1% |
| Wednesday Night | 50°F | Partly Cloudy | 3 mph E | 4% |
| Thursday | 65°F | Partly Sunny | 3 mph E | 12% |
| Thursday Night | 53°F | Mostly Cloudy | 2 mph E | 9% |
| Friday | 68°F | Partly Sunny | 5 mph E | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Gilman, IA
Last spring frost
May 3
First fall frost
Oct 6
Growing season
155 days
Hardiness zone
5a
Explore more for Gilman, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Grinnell 3 Sw, Ia (11.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.