Sandy Hook, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sandy Hook, a community in Grant County, Wisconsin.
This Afternoon
73°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm, then showers and thunderstorms. Cloudy, with a high near 73. Southeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Sandy Hook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Chance Showers And Thunderstorms | 7 mph SE | 85% |
| Tonight | 61°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 to 10 mph NE | 91% |
| Sunday | 67°F | Rain Showers Likely | 14 mph NE | 67% |
| Sunday Night | 54°F | Mostly Cloudy then Chance Rain Showers | 13 mph NE | 25% |
| Monday | 63°F | Chance Rain Showers | 14 mph NE | 26% |
| Monday Night | 49°F | Chance Rain Showers | 8 to 13 mph NE | 25% |
| Tuesday | 62°F | Chance Rain Showers then Partly Sunny | 8 to 12 mph NE | 25% |
| Tuesday Night | 46°F | Partly Cloudy | 5 to 8 mph NE | 4% |
| Wednesday | 65°F | Mostly Sunny | 8 mph NE | 2% |
| Wednesday Night | 50°F | Partly Cloudy | 5 mph NE | 2% |
| Thursday | 66°F | Mostly Sunny | 6 mph NE | 6% |
| Thursday Night | 52°F | Partly Cloudy | 3 mph NE | 3% |
| Friday | 69°F | Mostly Sunny | 2 to 6 mph E | 4% |
| Friday Night | 52°F | Partly Cloudy | 3 mph E | 3% |
Forecast source: National Weather Service (api.weather.gov) for Sandy Hook (42.547, -90.617). Updated through the day.
Growing snapshot for Sandy Hook
Last spring frost
Apr 19
First fall frost
Oct 21
Growing season
184 days
Hardiness zone
5a
More local growing data for Sandy Hook: nearby ZIP 53812 weather · frost dates · planting calendar · Wisconsin frost dates
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Climate data from the nearest NOAA station, Dubuque L&D 11, Ia (3.6 mi from Sandy Hook). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.