Weather World
Portage, WI 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Portage, WI Weather Forecast
Portage, WI Weather Forecast Date: 431 PM CDT Wed Sep 02 2026
The area/counties/county of: Columbia, including the cities of: Portage, Columbus, Lake Wisconsin, and Lodi.or toggle through each period.
Late This Afternoon... Partly sunny. Scattered sprinkles. West winds up to 10 mph.
Tonight... Partly cloudy. A 40% chance of light showers and thunderstorms in the late evening and overnight. Lows in the upper 60s. East winds up to 5 mph.
Thursday... Partly sunny. Light showers likely and slight chance of thunderstorms in the morning, then chance of light showers and thunderstorms in the late morning and afternoon. Highs in the lower 80s. South winds up to 10 mph. Chance of precipitation 60%.
Thursday Night... Partly cloudy with chance of light showers and thunderstorms in the evening, then showers and chance of thunderstorms in the late evening and overnight. Lows in the upper 60s. Southeast winds up to 5 mph. Chance of precipitation 90%.
Friday... Warm and humid. Partly sunny. Chance of light showers and slight chance of thunderstorms in the morning. Highs in the mid 80s. Southeast winds up to 5 mph. Chance of precipitation 30%. Highest heat index readings 95 to 97 in the afternoon.
Friday Night... Partly cloudy through around midnight then becoming mostly cloudy. Chance of light showers and slight chance of thunderstorms. Lows in the mid 60s. East winds up to 5 mph. Chance of precipitation 50%.
Saturday... Partly sunny with a 20% chance of light showers and thunderstorms. Highs in the lower 80s.
Saturday Night... Partly cloudy. A 20% chance of light showers and thunderstorms after midnight. Lows in the lower 60s.
Sunday... Partly sunny. Slight chance of light showers in the morning, then slight chance of light showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of precipitation 20%.
Sunday Night... Partly cloudy. Slight chance of light showers through around midnight, then chance of light showers and slight chance of thunderstorms after midnight. Lows in the lower 60s. Chance of precipitation 30%.
Labor Day... Partly sunny. A 20% chance of light showers in the morning. Highs around 80.
Monday Night... Partly cloudy. Slight chance of light showers through around midnight, then chance of light showers and slight chance of thunderstorms after midnight. Lows in the lower 60s. Chance of precipitation 30%.
Tuesday... Partly sunny. A 40% chance of light showers in the morning. Highs in the upper 70s.
Tuesday Night... Partly cloudy. Slight chance of light showers through around midnight, then chance of light showers and slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of precipitation 50%.
POP = Probability of Precipitation
Portage Radar Loop
Use the map search tool if you want to place a location marker on the radar map...