Jewell Junction, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jewell Junction, a city in Hamilton County, Iowa.
Overnight
67°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy, with a low around 67. South southeast wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Jewell Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 67°F | Chance Showers And Thunderstorms | 7 mph SSE | 45% |
| Saturday | 78°F | Chance Showers And Thunderstorms then Patchy Fog | 8 mph W | 47% |
| Saturday Night | 60°F | Chance Showers And Thunderstorms | 9 mph N | 25% |
| Sunday | 66°F | Chance Drizzle | 10 to 14 mph NE | 29% |
| Sunday Night | 54°F | Chance Rain Showers | 13 mph ENE | 44% |
| Monday | 61°F | Chance Rain Showers | 13 mph ENE | 51% |
| Monday Night | 49°F | Chance Rain Showers | 6 to 10 mph ENE | 51% |
| Tuesday | 61°F | Partly Sunny | 8 mph ENE | 11% |
| Tuesday Night | 45°F | Partly Cloudy | 2 to 6 mph E | 1% |
| Wednesday | 65°F | Sunny | 5 mph E | 1% |
| Wednesday Night | 50°F | Partly Cloudy | 3 mph ESE | 6% |
| Thursday | 66°F | Slight Chance Rain Showers | 5 mph ESE | 16% |
| Thursday Night | 53°F | Mostly Cloudy | 2 mph ESE | 9% |
| Friday | 69°F | Partly Sunny | 2 to 6 mph ESE | 8% |
Forecast source: National Weather Service (api.weather.gov) for Jewell Junction (42.312, -93.639). Updated through the day.
Growing snapshot for Jewell Junction
Last spring frost
May 3
First fall frost
Oct 2
Growing season
150 days
Hardiness zone
5a
More local growing data for Jewell Junction: nearby ZIP 50130 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Webster City, Ia (13.2 mi from Jewell Junction). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.