Forest City, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Forest City, a city in Winnebago County, Iowa.
Today
73°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely after 11am. Mostly cloudy. High near 73, with temperatures falling to around 71 in the afternoon. North northwest wind 7 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Forest City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Showers And Thunderstorms Likely | 7 to 10 mph NNW | 71% |
| Tonight | 55°F | Chance Showers And Thunderstorms then Mostly Cloudy | 2 to 7 mph NNW | 45% |
| Wednesday | 73°F | Partly Sunny | 3 mph N | 1% |
| Wednesday Night | 53°F | Mostly Clear | 2 mph SE | 1% |
| Thursday | 79°F | Sunny | 1 to 7 mph S | 0% |
| Thursday Night | 59°F | Mostly Clear | 6 mph S | 4% |
| Friday | 82°F | Sunny | 5 to 13 mph S | 10% |
| Friday Night | 63°F | Slight Chance Showers And Thunderstorms | 6 to 10 mph S | 24% |
| Saturday | 85°F | Sunny | 5 to 12 mph S | 14% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 12 mph WSW | 34% |
| Sunday | 84°F | Chance Showers And Thunderstorms then Mostly Sunny | 10 mph SE | 34% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms | 6 to 9 mph SE | 34% |
| Monday | 83°F | Chance Showers And Thunderstorms | 12 mph E | 34% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms | 7 to 10 mph ENE | 35% |
Forecast source: National Weather Service (api.weather.gov) for Forest City (43.257, -93.637). Updated through the day.
Growing snapshot for Forest City
Last spring frost
Apr 30
First fall frost
Oct 7
Growing season
159 days
Hardiness zone
5a
More local growing data for Forest City: nearby ZIP 50436 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Forest City 2 Nne, Ia (3.3 mi from Forest City). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.