Grant, IA Weather & Growing Conditions
Tonight
68°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 10pm. Mostly cloudy. Low around 68, with temperatures rising to around 71 overnight. South wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 68°F | Chance Showers And Thunderstorms | 6 to 10 mph S | 52% |
| Saturday | 81°F | Chance Showers And Thunderstorms | 9 mph WNW | 42% |
| Saturday Night | 62°F | Chance Showers And Thunderstorms | 7 mph N | 37% |
| Sunday | 67°F | Chance Showers And Thunderstorms | 7 to 12 mph NNE | 53% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms | 10 mph NE | 53% |
| Monday | 61°F | Rain Showers Likely | 10 mph NE | 58% |
| Monday Night | 52°F | Rain Showers Likely then Mostly Cloudy | 5 to 9 mph NE | 58% |
| Tuesday | 61°F | Mostly Cloudy | 8 mph NE | 8% |
| Tuesday Night | 48°F | Partly Cloudy | 2 to 7 mph ENE | 2% |
| Wednesday | 65°F | Mostly Sunny | 5 mph E | 4% |
| Wednesday Night | 52°F | Mostly Cloudy | 3 mph ESE | 10% |
| Thursday | 66°F | Chance Rain Showers | 1 to 5 mph SE | 25% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 2 mph SE | 23% |
| Friday | 67°F | Slight Chance Rain Showers | 1 to 6 mph ESE | 19% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grant, IA
Last spring frost
Apr 27
First fall frost
Oct 12
Growing season
168 days
Hardiness zone
5b
Explore more for Grant, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Corning, Ia (15.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.