Sandy Hook, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sandy Hook, a community in Grant County, Wisconsin.
Tonight
53°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. Low around 53, with temperatures rising to around 57 overnight. South wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Sandy Hook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Showers And Thunderstorms | 13 mph S | 88% |
| Wednesday | 55°F | Rain Showers Likely | 15 mph SW | 58% |
| Wednesday Night | 46°F | Chance Rain Showers | 10 to 15 mph SW | 38% |
| Thursday | 52°F | Rain Showers Likely | 7 to 12 mph W | 70% |
| Thursday Night | 41°F | Slight Chance Rain Showers then Mostly Cloudy | 9 mph N | 21% |
| Friday | 49°F | Partly Sunny | 5 to 10 mph N | 10% |
| Friday Night | 33°F | Partly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 52°F | Mostly Sunny | 3 mph W | 2% |
| Saturday Night | 35°F | Partly Cloudy | 5 mph W | 4% |
| Sunday | 58°F | Mostly Sunny | 5 to 8 mph W | 12% |
| Sunday Night | 37°F | Mostly Clear | 5 mph SW | 3% |
| Monday | 60°F | Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 40°F | Mostly Clear | 6 mph W | 0% |
| Tuesday | 60°F | Sunny | 7 mph W | 1% |
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
Nearby towns & communities
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Kieler
Lancaster
Livingston
Montfort
Mount Hope
Muscoda
Patch Grove
Platteville
Potosi
Tennyson
Woodman
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 Nov 4, 2026.