Glen Haven, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glen Haven, a community in Grant County, Wisconsin.
Overnight
52°F
Mostly Cloudy
Mostly cloudy. Low around 52, with temperatures rising to around 56 overnight. South wind around 9 mph.
7-day forecast for Glen Haven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Mostly Cloudy | 9 mph S | 10% |
| Wednesday | 55°F | Chance Rain Showers | 9 to 14 mph SW | 43% |
| Wednesday Night | 45°F | Chance Rain Showers | 10 to 14 mph SW | 54% |
| Thursday | 53°F | Rain Showers Likely | 12 mph NW | 64% |
| Thursday Night | 38°F | Mostly Cloudy | 6 to 10 mph N | 13% |
| Friday | 49°F | Mostly Sunny | 3 to 8 mph N | 1% |
| Friday Night | 30°F | Mostly Clear | 2 mph N | 0% |
| Saturday | 51°F | Sunny | 0 to 5 mph W | 0% |
| Saturday Night | 34°F | Mostly Clear | 3 mph W | 2% |
| Sunday | 56°F | Sunny | 3 to 8 mph W | 3% |
| Sunday Night | 35°F | Mostly Clear | 1 to 5 mph SW | 0% |
| Monday | 60°F | Sunny | 2 to 10 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 2 to 6 mph W | 0% |
| Tuesday | 60°F | Sunny | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Glen Haven (42.836, -91.061). Updated through the day.
Growing snapshot for Glen Haven
Last spring frost
Apr 21
First fall frost
Oct 18
Growing season
178 days
Hardiness zone
5a
More local growing data for Glen Haven: nearby ZIP 53810 weather · frost dates · planting calendar · Wisconsin frost dates
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Bagley
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Kieler
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Livingston
Montfort
Mount Hope
Muscoda
Patch Grove
Platteville
Potosi
Sandy Hook
Tennyson
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Climate data from the nearest NOAA station, Guttenberg L&D 10, Ia (5.5 mi from Glen Haven). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.