Wellsburg, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wellsburg, a city in Grundy County, Iowa.
Overnight
64°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. Low around 64, with temperatures rising to around 67 overnight. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Wellsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Showers And Thunderstorms Likely | 5 mph E | 56% |
| Saturday | 78°F | Showers And Thunderstorms Likely | 5 to 8 mph WSW | 61% |
| Saturday Night | 59°F | Chance Showers And Thunderstorms | 8 to 12 mph N | 30% |
| Sunday | 66°F | Slight Chance Rain Showers then Chance Drizzle | 12 to 15 mph NE | 37% |
| Sunday Night | 53°F | Chance Rain Showers | 14 mph ENE | 37% |
| Monday | 62°F | Chance Rain Showers | 14 mph NE | 42% |
| Monday Night | 48°F | Chance Rain Showers | 6 to 12 mph NE | 41% |
| Tuesday | 61°F | Partly Sunny | 6 to 9 mph ENE | 12% |
| Tuesday Night | 44°F | Partly Cloudy | 2 to 6 mph ENE | 2% |
| Wednesday | 65°F | Sunny | 5 mph ENE | 1% |
| Wednesday Night | 49°F | Partly Cloudy | 3 mph E | 5% |
| Thursday | 66°F | Partly Sunny | 3 mph ESE | 12% |
| Thursday Night | 52°F | Mostly Cloudy | 2 mph ESE | 8% |
| Friday | 69°F | Mostly Sunny | 1 to 5 mph ESE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Wellsburg (42.434, -92.927). Updated through the day.
Growing snapshot for Wellsburg
Last spring frost
Apr 29
First fall frost
Oct 9
Growing season
160 days
Hardiness zone
5a
More local growing data for Wellsburg: nearby ZIP 50680 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grundy Ctr, Ia (9.8 mi from Wellsburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.