Fostoria, IA Weather & Growing Conditions
Tonight
41°F
Rain Showers
Rain showers. Cloudy, with a low around 41. Northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 41°F | Rain Showers | 15 to 20 mph NW | 87% |
| Wednesday | 46°F | Rain Showers | 15 mph WNW | 86% |
| Wednesday Night | 38°F | Rain Showers Likely | 15 mph NW | 69% |
| Thursday | 46°F | Chance Rain Showers | 15 mph NNW | 42% |
| Thursday Night | 33°F | Mostly Cloudy | 5 to 10 mph N | 6% |
| Friday | 46°F | Partly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 30°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 53°F | Mostly Sunny | 0 to 10 mph SW | 1% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 4% |
| Sunday | 57°F | Sunny | 5 to 10 mph WSW | 4% |
| Sunday Night | 37°F | Mostly Clear | 5 to 10 mph SSW | 1% |
| Monday | 60°F | Sunny | 10 mph WSW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 57°F | Mostly Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fostoria, IA
Last spring frost
May 1
First fall frost
Oct 3
Growing season
154 days
Hardiness zone
5a
Explore more for Fostoria, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Spencer 1 N, Ia (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.