Niagara, WI Weather & Growing Conditions
Today
63°F
Rain Showers
Rain showers and areas of fog before 9am, then areas of fog and a chance of rain showers between 9am and 10am, then rain showers likely and patchy fog. Mostly cloudy. High near 63, with temperatures falling to around 58 in the afternoon. South southeast wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 63°F | Rain Showers | 10 mph SSE | 96% |
| Tonight | 43°F | Rain Showers | 6 to 9 mph SSW | 81% |
| Thursday | 50°F | Rain Showers | 6 to 18 mph NW | 78% |
| Thursday Night | 30°F | Chance Rain Showers | 12 to 18 mph N | 29% |
| Friday | 43°F | Slight Chance Snow Showers then Mostly Cloudy | 7 to 13 mph N | 22% |
| Friday Night | 24°F | Partly Cloudy | 2 to 6 mph NNW | 0% |
| Saturday | 49°F | Sunny | 5 mph WNW | 0% |
| Saturday Night | 28°F | Partly Cloudy | 6 mph W | 5% |
| Sunday | 52°F | Mostly Sunny | 6 to 10 mph WNW | 8% |
| Sunday Night | 29°F | Partly Cloudy | 2 to 7 mph W | 1% |
| Monday | 55°F | Mostly Sunny | 2 to 10 mph WSW | 2% |
| Monday Night | 34°F | Partly Cloudy | 8 mph W | 5% |
| Tuesday | 54°F | Slight Chance Rain Showers then Mostly Sunny | 6 to 10 mph NW | 15% |
| Tuesday Night | 30°F | Partly Cloudy | 5 mph NW | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Niagara, WI
Last spring frost
May 17
First fall frost
Oct 1
Growing season
135 days
Hardiness zone
4b
Explore more for Niagara, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Iron Mtn-Kingsford Wwtp, Mi (6.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.