Norwalk, IA Weather & Growing Conditions
This Afternoon
67°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 67, with temperatures falling to around 62 in the afternoon. North northwest wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Showers And Thunderstorms Likely | 8 mph NNW | 71% |
| Tonight | 47°F | Rain Showers Likely | 9 to 13 mph NW | 66% |
| Wednesday | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 14 to 17 mph W | 16% |
| Wednesday Night | 44°F | Mostly Cloudy then Slight Chance Rain Showers | 13 mph W | 15% |
| Thursday | 53°F | Chance Rain Showers | 13 mph NW | 54% |
| Thursday Night | 41°F | Mostly Cloudy | 9 mph NNW | 10% |
| Friday | 52°F | Partly Sunny | 5 to 8 mph N | 3% |
| Friday Night | 35°F | Partly Cloudy | 3 mph N | 0% |
| Saturday | 57°F | Mostly Sunny | 1 to 5 mph WSW | 1% |
| Saturday Night | 38°F | Mostly Clear | 5 mph W | 4% |
| Sunday | 63°F | Sunny | 7 mph W | 6% |
| Sunday Night | 40°F | Mostly Clear | 6 mph SW | 1% |
| Monday | 66°F | Sunny | 6 to 12 mph SW | 0% |
| Monday Night | 43°F | Mostly Clear | 7 mph WNW | 0% |
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 Nov 4, 2026.