Norwalk, IA Weather & Growing Conditions
Today
82°F
Chance Rain Showers then Slight Chance Showers And Thunderstorms
A chance of rain showers before 4pm, then a slight chance of showers and thunderstorms. Partly sunny. High near 82, with temperatures falling to around 79 in the afternoon. West wind around 9 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 9 mph W | 29% |
| Tonight | 62°F | Chance Showers And Thunderstorms | 8 mph N | 46% |
| Sunday | 67°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 8 to 12 mph NNE | 43% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 12 mph NE | 60% |
| Monday | 62°F | Rain Showers Likely | 12 mph NE | 60% |
| Monday Night | 53°F | Rain Showers Likely | 7 to 10 mph NE | 60% |
| Tuesday | 61°F | Partly Sunny | 9 mph NE | 12% |
| Tuesday Night | 48°F | Partly Cloudy | 3 to 7 mph ENE | 3% |
| Wednesday | 65°F | Sunny | 2 to 6 mph ENE | 2% |
| Wednesday Night | 53°F | Partly Cloudy | 3 mph E | 4% |
| Thursday | 66°F | Slight Chance Rain Showers | 5 mph ESE | 21% |
| Thursday Night | 57°F | Mostly Cloudy | 3 mph ESE | 8% |
| Friday | 68°F | Partly Sunny | 2 to 6 mph ESE | 8% |
| Friday Night | 57°F | Mostly Cloudy | 5 mph ESE | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Norwalk, IA
Last spring frost
Apr 18
First fall frost
Oct 20
Growing season
184 days
Hardiness zone
5b
Explore more for Norwalk, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Des Moines Intl Ap, Ia (6.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.