Welton, IA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Welton, a city in Clinton County, Iowa.

Overnight

65°F

Patchy Fog

Patchy fog and a chance of showers and thunderstorms. Mostly cloudy. Low around 65, with temperatures rising to around 68 overnight. Southeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast for Welton

When	Temp	Forecast	Wind	Precip
Overnight	65°F	Patchy Fog	5 mph SE	37%
Saturday	81°F	Patchy Fog	5 to 10 mph SE	91%
Saturday Night	63°F	Chance Showers And Thunderstorms then Showers And Thunderstorms	5 to 10 mph NW	80%
Sunday	70°F	Rain Showers Likely	10 mph NE	66%
Sunday Night	56°F	Chance Rain Showers	10 mph NE	38%
Monday	65°F	Chance Rain Showers	10 mph NE	52%
Monday Night	51°F	Chance Rain Showers	5 to 10 mph NE	44%
Tuesday	63°F	Slight Chance Rain Showers	5 to 10 mph NE	21%
Tuesday Night	48°F	Partly Cloudy	5 mph NE	6%
Wednesday	67°F	Mostly Sunny	5 mph NE	2%
Wednesday Night	51°F	Partly Cloudy	0 to 5 mph NE	1%
Thursday	68°F	Mostly Sunny	0 to 5 mph NE	6%
Thursday Night	52°F	Partly Cloudy	0 mph	6%
Friday	71°F	Mostly Sunny	0 to 5 mph NE	5%

Forecast source: National Weather Service (api.weather.gov) for Welton (41.908, -90.597). Updated through the day.

Growing snapshot for Welton

Last spring frost

Apr 25

First fall frost

Oct 14

Growing season

171 days

Hardiness zone

More local growing data for Welton: nearby ZIP 52774 weather · frost dates · planting calendar · Iowa frost dates

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Climate data from the nearest NOAA station, Maquoketa, Ia (12.2 mi from Welton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.