Wellsburg, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wellsburg, a city in Grundy County, Iowa.
Overnight
66°F
Patchy Fog
Patchy fog and showers and thunderstorms likely. Mostly cloudy. Low around 66, with temperatures rising to around 68 overnight. Southeast wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Wellsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Patchy Fog | 8 mph SE | 72% |
| Saturday | 78°F | Showers And Thunderstorms Likely | 8 mph WSW | 57% |
| Saturday Night | 59°F | Chance Showers And Thunderstorms | 8 to 12 mph N | 30% |
| Sunday | 66°F | Chance Rain Showers | 12 to 15 mph NE | 49% |
| Sunday Night | 53°F | Chance Rain Showers | 14 mph ENE | 31% |
| Monday | 62°F | Chance Rain Showers | 14 mph NE | 56% |
| Monday Night | 48°F | Chance Rain Showers | 6 to 12 mph NE | 56% |
| Tuesday | 61°F | Partly Sunny | 6 to 9 mph ENE | 25% |
| Tuesday Night | 44°F | Partly Cloudy | 2 to 6 mph ENE | 4% |
| Wednesday | 65°F | Sunny | 5 mph ENE | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 3 mph E | 4% |
| Thursday | 66°F | Partly Sunny | 3 mph ESE | 14% |
| Thursday Night | 52°F | Mostly Cloudy | 2 mph ESE | 9% |
| Friday | 69°F | Mostly Sunny | 1 to 5 mph ESE | 6% |
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.