Niagara, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Niagara, a city in Dickinson County, Wisconsin.
This Afternoon
65°F
Areas Of Fog
Areas of fog and a chance of rain showers. Cloudy, with a high near 65. South wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Niagara
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Areas Of Fog | 9 mph S | 51% |
| Tonight | 57°F | Rain Showers | 8 mph SSE | 91% |
| Wednesday | 63°F | Rain Showers | 7 to 10 mph SSE | 90% |
| Wednesday Night | 45°F | Rain Showers | 8 mph SSW | 84% |
| Thursday | 51°F | Rain Showers | 5 to 16 mph NW | 97% |
| Thursday Night | 32°F | Slight Chance Rain Showers then Cloudy | 12 to 17 mph N | 24% |
| Friday | 44°F | Partly Sunny | 9 to 14 mph N | 10% |
| Friday Night | 26°F | Partly Cloudy | 2 to 7 mph NNW | 3% |
| Saturday | 48°F | Mostly Sunny | 5 mph W | 1% |
| Saturday Night | 29°F | Partly Cloudy | 3 mph W | 11% |
| Sunday | 53°F | Mostly Sunny | 3 to 10 mph WNW | 13% |
| Sunday Night | 31°F | Partly Cloudy | 3 to 7 mph W | 4% |
| Monday | 54°F | Mostly Sunny | 3 to 10 mph WSW | 1% |
| Monday Night | 35°F | Partly Cloudy | 8 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for Niagara (45.779, -88.003). Updated through the day.
Growing snapshot for Niagara
Last spring frost
May 17
First fall frost
Oct 1
Growing season
135 days
Hardiness zone
4b
More local growing data for Niagara: nearby ZIP 49876 weather · frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Iron Mtn-Kingsford Wwtp, Mi (5.3 mi from Niagara). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.