Houghton, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Houghton, a city in Lee County, Iowa.
Overnight
70°F
Patchy Fog
Patchy fog and a slight chance of showers and thunderstorms. Mostly cloudy. Low around 70, with temperatures rising to around 72 overnight. South wind around 5 mph. Chance of precipitation is 20%.
7-day forecast for Houghton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Patchy Fog | 5 mph S | 16% |
| Saturday | 85°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 27% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 5 mph NW | 77% |
| Sunday | 73°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph N | 79% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely | 10 mph NE | 65% |
| Monday | 64°F | Showers And Thunderstorms Likely | 10 mph NE | 65% |
| Monday Night | 53°F | Chance Rain Showers | 10 mph NE | 45% |
| Tuesday | 62°F | Chance Rain Showers | 10 mph NE | 41% |
| Tuesday Night | 48°F | Partly Cloudy | 5 mph NE | 4% |
| Wednesday | 66°F | Sunny | 5 mph NE | 0% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Thursday | 69°F | Partly Sunny | 0 to 5 mph NE | 6% |
| Thursday Night | 55°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph E | 4% |
Forecast source: National Weather Service (api.weather.gov) for Houghton (40.784, -91.610). Updated through the day.
Growing snapshot for Houghton
Last spring frost
Apr 17
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6a
More local growing data for Houghton: nearby ZIP 52631 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Argyle
Denmark
Donnellson
Farmington
Fort Madison
Franklin
Hillsboro
Keokuk
Montrose
Mooar
Oak Hills
Sandusky
St. Paul
West Point
Wever
Climate data from the nearest NOAA station, Donnellson, Ia (9.8 mi from Houghton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.