Fairfax, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairfax, a city in Linn County, Iowa.
Today
82°F
Partly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Partly sunny. High near 82, with temperatures falling to around 80 in the afternoon. West wind 5 to 10 mph. Chance of precipitation is 40%.
7-day forecast for Fairfax
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph W | 41% |
| Tonight | 64°F | Showers And Thunderstorms Likely | 5 to 10 mph N | 82% |
| Wednesday | 76°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph N | 71% |
| Wednesday Night | 57°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 35% |
| Thursday | 81°F | Slight Chance Rain Showers then Mostly Sunny | 5 mph NE | 22% |
| Thursday Night | 59°F | Mostly Clear | 0 mph | 2% |
| Friday | 83°F | Sunny | 0 to 5 mph SE | 4% |
| Friday Night | 65°F | Mostly Clear | 5 mph S | 11% |
| Saturday | 86°F | Sunny | 5 to 10 mph S | 9% |
| Saturday Night | 70°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 10 mph S | 15% |
| Sunday | 88°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 mph S | 15% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 37% |
| Monday | 87°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 mph S | 37% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms | 10 mph SE | 34% |
Forecast source: National Weather Service (api.weather.gov) for Fairfax (41.925, -91.778). Updated through the day.
Growing snapshot for Fairfax
Last spring frost
Apr 27
First fall frost
Oct 11
Growing season
165 days
Hardiness zone
5a
More local growing data for Fairfax: nearby ZIP 52228 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Alburnett
Bertram
Cedar Rapids
Center Point
Central City
Coggon
Ely
Hiawatha
Marion
Mount Vernon
Palo
Prairieburg
Robins
Springville
Walker
Climate data from the nearest NOAA station, Cedar Rapids Muni Ap, Ia (3.9 mi from Fairfax). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.