Niagara, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Niagara, a city in Dickinson County, Wisconsin.
This Afternoon
63°F
Slight Chance Rain Showers
A slight chance of rain showers. Cloudy. High near 63, with temperatures falling to around 61 in the afternoon. Southeast wind around 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Niagara
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Slight Chance Rain Showers | 7 mph SE | 19% |
| Tonight | 46°F | Slight Chance Rain Showers then Patchy Fog | 1 to 6 mph ESE | 24% |
| Saturday | 63°F | Chance Rain Showers | 2 to 8 mph E | 38% |
| Saturday Night | 46°F | Patchy Fog | 1 to 5 mph NE | 10% |
| Sunday | 65°F | Mostly Sunny | 6 to 13 mph NNE | 3% |
| Sunday Night | 40°F | Mostly Cloudy | 5 to 13 mph NE | 0% |
| Monday | 61°F | Partly Sunny | 8 mph ENE | 0% |
| Monday Night | 37°F | Partly Cloudy | 3 to 7 mph NE | 0% |
| Tuesday | 63°F | Patchy Frost then Mostly Sunny | 3 to 8 mph ENE | 2% |
| Tuesday Night | 39°F | Partly Cloudy | 2 to 6 mph ENE | 4% |
| Wednesday | 66°F | Mostly Sunny | 2 to 8 mph ENE | 5% |
| Wednesday Night | 42°F | Patchy Fog | 0 to 6 mph ENE | 4% |
| Thursday | 69°F | Patchy Fog then Mostly Sunny | 1 to 6 mph NE | 5% |
| Thursday Night | 44°F | Partly Cloudy | 0 to 5 mph SW | 5% |
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 Sep 18, 2026.