Tennyson, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tennyson, a village in Grant County, Wisconsin.
This Afternoon
70°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy. High near 70, with temperatures falling to around 67 in the afternoon. East wind around 12 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Tennyson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Slight Chance Showers And Thunderstorms | 12 mph E | 23% |
| Tonight | 63°F | Chance Showers And Thunderstorms | 10 to 14 mph E | 87% |
| Saturday | 76°F | Showers And Thunderstorms | 9 mph S | 78% |
| Saturday Night | 60°F | Showers And Thunderstorms | 6 to 12 mph N | 80% |
| Sunday | 67°F | Chance Rain Showers | 15 mph NE | 49% |
| Sunday Night | 54°F | Chance Rain Showers then Mostly Cloudy | 15 mph NE | 28% |
| Monday | 63°F | Chance Rain Showers | 15 mph NE | 42% |
| Monday Night | 50°F | Chance Rain Showers | 9 to 15 mph NE | 42% |
| Tuesday | 61°F | Chance Rain Showers | 9 to 13 mph NE | 35% |
| Tuesday Night | 47°F | Partly Cloudy | 5 to 9 mph NE | 8% |
| Wednesday | 65°F | Mostly Sunny | 7 mph NE | 2% |
| Wednesday Night | 50°F | Partly Cloudy | 5 mph NE | 2% |
| Thursday | 67°F | Mostly Sunny | 5 mph NE | 5% |
| Thursday Night | 52°F | Partly Cloudy | 2 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Tennyson (42.691, -90.687). Updated through the day.
Growing snapshot for Tennyson
Last spring frost
Apr 27
First fall frost
Oct 11
Growing season
166 days
Hardiness zone
5a
More local growing data for Tennyson: nearby ZIP 53820 weather · frost dates · planting calendar · Wisconsin frost dates
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Sandy Hook
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Climate data from the nearest NOAA station, Lancaster 4 Wsw, Wi (9.9 mi from Tennyson). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.