| NWS Forecast for: Portage County Issued by: National Weather Service Green Bay, WI Last Update: 113 AM CDT Tue Sep 22 2026 | |
Rest Of The Night: Mostly cloudy. A slight chance of sprinkles. Nearly steady temperature in the mid 40s. Northeast wind 5 to 10 mph. Tuesday: Partly cloudy. Highs in the lower 60s. East wind 10 to 15 mph. Tuesday Night: Mostly clear. Lows in the lower 40s. East wind 5 to 10 mph in the evening becoming light and variable. Wednesday: Mostly sunny. Highs in the middle 60s. East wind 5 to 10 mph. Wednesday Night: Clear in the evening then becoming partly cloudy. Lows in the lower 40s. Light and variable wind. Thursday And Thursday Night: Mostly cloudy. Highs in the middle 60s. Lows in the middle 40s. Friday And Friday Night: Partly cloudy. Highs in the middle 60s. Lows in the middle 40s. Saturday: Partly sunny. Highs in the middle 60s. Saturday Night: Mostly cloudy with a 30 percent chance of showers. Lows in the upper 40s. Sunday: Mostly cloudy. Highs in the upper 60s. Sunday Night And Monday: Partly cloudy. Lows around 50. Highs around 70. | |
| Zone Forecast: Portage County | |
Visit your local NWS office at: https://www.weather.gov/grb |