Alexander, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alexander, a city in Franklin County, Iowa.
Tonight
44°F
Rain Showers
Rain showers. Cloudy. Low around 44, with temperatures rising to around 48 overnight. Northwest wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Alexander
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 44°F | Rain Showers | 14 mph NW | 81% |
| Wednesday | 50°F | Chance Rain Showers | 13 to 18 mph W | 52% |
| Wednesday Night | 40°F | Rain Showers Likely | 12 to 15 mph WNW | 62% |
| Thursday | 50°F | Chance Rain Showers | 12 to 15 mph NNW | 47% |
| Thursday Night | 35°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 10 mph N | 18% |
| Friday | 49°F | Partly Sunny | 2 to 7 mph NNE | 4% |
| Friday Night | 30°F | Partly Cloudy | 1 mph NNE | 1% |
| Saturday | 54°F | Mostly Sunny | 1 to 6 mph SW | 2% |
| Saturday Night | 34°F | Partly Cloudy | 5 mph W | 3% |
| Sunday | 58°F | Sunny | 7 mph W | 6% |
| Sunday Night | 37°F | Mostly Clear | 7 mph SW | 2% |
| Monday | 62°F | Mostly Sunny | 7 to 12 mph WSW | 0% |
| Monday Night | 39°F | Mostly Clear | 6 mph WNW | 0% |
| Tuesday | 60°F | Mostly Sunny | 6 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Alexander (42.804, -93.479). Updated through the day.
Growing snapshot for Alexander
Last spring frost
Apr 29
First fall frost
Oct 9
Growing season
162 days
Hardiness zone
5a
More local growing data for Alexander: nearby ZIP 50420 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Hampton, Ia (13.4 mi from Alexander). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.