Local Forecast

Sister Bay, WI Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Sister Bay, WI.

Active Alerts 2 active

Hour-by-Hour  Current Observation

Sunday 11:35 AM CDTSunday 11:35 AM

°F °C
Regional Observations →
72°F

Clear

  • 80° / 64° High / Low
  • 72° Feels Like
  • 0% Chance of Rain

Wind

6 mph

SE

UV Index

10

Very High

Humidity

58%

Dew 56°F

Sun

5:02 AM · 8:39 PM

Rise · Set

Source: EPHRAIM (K3D2). Slider scrubs the next 12 hours.

5-Day Outlook

Through Thursday

Local Radar →

Today

80° 64°

Mostly Cloudy

Overnight: Thunderstorms

Detailed forecast

Today

Mostly sunny, with a high near 80. Heat index values as high as 79. Southeast wind around 7 mph.

Night

A chance of showers and thunderstorms between midnight and 3am, then showers and thunderstorms. Mostly cloudy, with a low around 63. East southeast wind 5 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

Monday

84° 68°

Chance of Rain Showers

Overnight: Mostly Cloudy

Detailed forecast

Monday

A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 83. Heat index values as high as 85. South southeast wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

Night

Partly cloudy, with a low around 68. South wind 12 to 15 mph, with gusts as high as 24 mph.

Tuesday

91° 69°

Isolated T-storm

Overnight: Chance of Scattered Thunderstorms

Detailed forecast

Tuesday

A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. South southwest wind 12 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

Night

A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 50%.

Wednesday

91° 68°

Isolated T-storm

Overnight: Thunderstorms Likely

Detailed forecast

Wednesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 50%.

Night

A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 68. Chance of precipitation is 70%.

Thursday

86° 68°

Chance of Scattered Thunderstorms

Overnight: Chance of Scattered Thunderstorms

Detailed forecast

Thursday

Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 70%.

Night

A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 40%.

Sister Bay, WI Weather Analysis Tools