Areas of fog, some locally dense with visibilities under one half mile, can be expected through the morning commute. Motorists should exercise caution this morning, especially during the morning commute, as visibilities may change suddenly over very short distances. This fog is expected to decrease through 8 and 9 AM as showers and thunderstorms increase and move into the area.
Local weather forecast
Weather in Potosi, WI
Updated 2026-08-11 12:00 local time · ZIP codes 53820
Now72°F
Sunny
High / Low86° / 67°
Rain chance79%
Wind6 mph
Weather alerts
2Active alerts
SEVERE THUNDERSTORM WATCH 563 REMAINS VALID UNTIL 2 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS IN WISCONSIN THIS WATCH INCLUDES 3 COUNTIES IN SOUTHWEST WISCONSIN CRAWFORD GRANT RICHLAND THIS INCLUDES THE CITIES OF PLATTEVILLE, PRAIRIE DU CHIEN, AND RICHLAND CENTER.
Hourly
Next hours
Now72°9% rain
72°9% rain1 PM
82°19% rain
82°19% rain2 PM82°18% rain
82°18% rain3 PM
81°24% rain
81°24% rain4 PM86°7% rain
86°7% rain5 PM86°7% rain
86°7% rain6 PM85°7% rain
85°7% rain7 PM83°8% rain
83°8% rain8 PM80°11% rain
80°11% rain9 PM
79°11% rain
79°11% rain10 PM78°15% rain
78°15% rain11 PM77°15% rain
77°15% rainForecast
3-day weather forecast
Today2026-08-11
86° 67°Sunny
Rain 79%Gust 11 mph
Tomorrow2026-08-12
81° 67°Sunny
Rain 81%Gust 10 mph
Thursday2026-08-13
77° 68°Sunny
Rain 71%Gust 6 mph
Conditions
Weather details
Feels like76°F
Humidity88%
Pressure29.85 inHg
Visibility10 mi
Wind6 mph E
Wind gusts10 mph
Precipitation0.00 in
UV index7
Daylight
Sunrise, sunset and moon
Sunrise06:05 AM
Sunset08:10 PM
Moonrise04:03 AM
Moon phaseNew Moon
Practical guide
Weather insights for today
Umbrella not essential
Rain chance stays relatively low over the next 12 hours (up to 24%).
Light layers should work
It feels like 76°F with winds near 6 mph.
Best window: 12 PM
72°F, 9% rain chance and 6 mph wind.
Use extra caution while driving
Visibility is around 10 mi; gusts may reach 14 mph.
Good conditions for an easy run
Current temperature is 72°F, wind 6 mph, rain chance up to 24%.
High UV protection needed
UV index is 7. Sunscreen, shade and protective clothing are recommended.
Potosi weather today
Sunny and 72°F in Potosi, WI. Today's high is 86°F with a 79% rain chance. Winds are around 6 mph with gusts near 10 mph. Relative humidity is 88%, pressure is 29.85 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Potosi
Sunrise is at 06:05 AM and sunset is at 08:10 PM. Tomorrow's forecast calls for Sunny with a high near 81°F and a low near 67°F. The maximum rain chance is 81%.
Nearby
Weather near Potosi
Wisconsin
View state page →Popular cities in Wisconsin
Explore more weather
Browse Midwest →