Danbury, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Danbury, a city in Woodbury County, Iowa.
Overnight
67°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 4am, then patchy fog and a slight chance of showers and thunderstorms between 4am and 5am, then patchy fog and a chance of showers and thunderstorms. Mostly cloudy. Low around 67, with temperatures rising to around 71 overnight. West wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Danbury
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 67°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 34% |
| Saturday | 73°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph NNW | 49% |
| Saturday Night | 58°F | Cloudy | 5 to 10 mph N | 13% |
| Sunday | 63°F | Cloudy then Chance Rain Showers | 5 to 10 mph NE | 29% |
| Sunday Night | 53°F | Chance Rain Showers | 5 to 10 mph ENE | 48% |
| Monday | 59°F | Rain Showers Likely | 5 to 10 mph ENE | 59% |
| Monday Night | 48°F | Chance Rain Showers then Mostly Cloudy | 5 mph ENE | 43% |
| Tuesday | 60°F | Partly Sunny | 5 mph E | 9% |
| Tuesday Night | 44°F | Partly Cloudy | 0 to 5 mph ESE | 1% |
| Wednesday | 64°F | Mostly Sunny | 0 to 5 mph SE | 3% |
| Wednesday Night | 50°F | Partly Cloudy then Chance Rain Showers | 0 to 5 mph SE | 30% |
| Thursday | 66°F | Chance Rain Showers | 0 to 5 mph SE | 30% |
| Thursday Night | 54°F | Mostly Cloudy | 0 to 5 mph SE | 14% |
| Friday | 68°F | Mostly Cloudy | 5 mph SE | 14% |
Forecast source: National Weather Service (api.weather.gov) for Danbury (42.236, -95.722). Updated through the day.
Growing snapshot for Danbury
Last spring frost
May 3
First fall frost
Oct 1
Growing season
151 days
Hardiness zone
5a
More local growing data for Danbury: nearby ZIP 51019 weather · frost dates · planting calendar · Iowa frost dates
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Climate data from the nearest NOAA station, Mapleton No.2, Ia (8.6 mi from Danbury). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.