Omro, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Omro, a city in Winnebago County, Wisconsin.
This Afternoon
69°F
Chance Rain Showers
A chance of rain showers before 5pm, then a chance of rain showers and patchy fog. Cloudy. High near 69, with temperatures falling to around 67 in the afternoon. South wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Omro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Chance Rain Showers | 14 mph S | 37% |
| Tonight | 58°F | Rain Showers | 12 mph S | 92% |
| Wednesday | 64°F | Rain Showers | 10 to 15 mph S | 88% |
| Wednesday Night | 46°F | Rain Showers Likely | 14 mph SW | 66% |
| Thursday | 54°F | Rain Showers | 12 mph WNW | 87% |
| Thursday Night | 37°F | Chance Rain Showers then Mostly Cloudy | 14 mph N | 39% |
| Friday | 48°F | Slight Chance Rain Showers then Partly Sunny | 8 to 14 mph N | 16% |
| Friday Night | 31°F | Partly Cloudy | 1 to 5 mph NNW | 2% |
| Saturday | 51°F | Mostly Sunny | 1 to 6 mph W | 1% |
| Saturday Night | 34°F | Partly Cloudy | 2 to 6 mph WSW | 10% |
| Sunday | 57°F | Slight Chance Rain Showers | 6 to 10 mph W | 15% |
| Sunday Night | 35°F | Mostly Clear | 7 mph W | 3% |
| Monday | 58°F | Mostly Sunny | 6 to 13 mph SW | 1% |
| Monday Night | 39°F | Mostly Clear | 9 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Omro (44.039, -88.737). Updated through the day.
Growing snapshot for Omro
Last spring frost
May 1
First fall frost
Oct 8
Growing season
158 days
Hardiness zone
5b
More local growing data for Omro: nearby ZIP 54963 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Berlin Wwtp, Wi (9.5 mi from Omro). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.