Dunlap, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dunlap, a city in Harrison County, Iowa.
Tonight
66°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 3am, then showers and thunderstorms likely between 3am and 4am, then a chance of showers and thunderstorms. Mostly cloudy. Low around 66, with temperatures rising to around 69 overnight. South southwest wind 2 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Dunlap
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Chance Showers And Thunderstorms | 2 to 8 mph SSW | 62% |
| Saturday | 76°F | Chance Showers And Thunderstorms | 2 to 7 mph NNW | 48% |
| Saturday Night | 60°F | Chance Showers And Thunderstorms | 7 mph N | 26% |
| Sunday | 65°F | Chance Rain Showers | 6 to 10 mph NE | 28% |
| Sunday Night | 55°F | Chance Rain Showers | 8 mph ENE | 50% |
| Monday | 59°F | Showers And Thunderstorms Likely | 8 mph ENE | 63% |
| Monday Night | 51°F | Chance Showers And Thunderstorms then Mostly Cloudy | 2 to 7 mph NE | 52% |
| Tuesday | 61°F | Mostly Cloudy | 3 to 7 mph ENE | 8% |
| Tuesday Night | 48°F | Partly Cloudy | 1 to 5 mph E | 1% |
| Wednesday | 65°F | Mostly Sunny | 1 to 5 mph SE | 4% |
| Wednesday Night | 52°F | Mostly Cloudy then Slight Chance Rain Showers | 2 mph SE | 19% |
| Thursday | 66°F | Chance Rain Showers | 1 to 5 mph SSE | 30% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 2 mph SE | 19% |
| Friday | 67°F | Slight Chance Rain Showers then Partly Sunny | 1 to 6 mph SE | 19% |
Forecast source: National Weather Service (api.weather.gov) for Dunlap (41.852, -95.602). Updated through the day.
Growing snapshot for Dunlap
Last spring frost
Apr 29
First fall frost
Oct 8
Growing season
162 days
Hardiness zone
5b
More local growing data for Dunlap: nearby ZIP 51529 weather · frost dates · planting calendar · Iowa frost dates
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Climate data from the nearest NOAA station, Logan, Ia (17.1 mi from Dunlap). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.