Local Forecast

Grantsburg, IL Weather Forecast & Alerts

Current conditions, 5-day forecast, active weather alerts for Grantsburg, IL

Active Alerts 1 active

Hour-by-Hour  Current Observation

Saturday 3:45 PM CDTSaturday 3:45 PM

°F °C
Regional Observations →
91°F

Partly Cloudy

  • 93° / 73° High / Low
  • 102° Feels Like
  • 0% Chance of Rain

Wind

9 mph

SW

UV Index

8

Very High

Humidity

59%

Dew 75°F

Sun

5:47 AM · 8:13 PM

Rise · Set

Source: MARION REGIONAL (KMWA). Slider scrubs the next 12 hours.

5-Day Outlook

Through Wednesday

Local Radar →

Today

93° 73°

Isolated T-storm

Overnight: Isolated T-storm

Detailed forecast

Today

A slight chance of showers and thunderstorms after 4pm. Sunny. High near 92, with temperatures falling to around 90 in the afternoon. West wind around 6 mph. Chance of precipitation is 20%.

Night

A slight chance of showers and thunderstorms. Partly cloudy. Low around 73, with temperatures rising to around 75 overnight. West wind 0 to 5 mph. Chance of precipitation is 20%.

Sunday

91° 73°

Thunderstorms Likely

Overnight: Isolated T-storm

Detailed forecast

Sunday

A chance of showers and thunderstorms between 1pm and 2pm, then showers and thunderstorms likely between 2pm and 5pm, then a chance of showers and thunderstorms. Mostly sunny. High near 90, with temperatures falling to around 86 in the afternoon. North northwest wind around 2 mph. Chance of precipitation is 60%.

Night

A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. North wind around 1 mph. Chance of precipitation is 50%.

Monday

91° 75°

Isolated T-storm

Overnight: Partly Cloudy

Detailed forecast

Monday

A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Southwest wind around 2 mph. Chance of precipitation is 20%.

Night

A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 74. South southwest wind around 2 mph. Chance of precipitation is 20%.

Tuesday

95° 69°

Isolated T-storm

Overnight: Mostly Clear

Detailed forecast

Tuesday

A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. West southwest wind 3 to 8 mph.

Night

A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 69. North northwest wind 2 to 6 mph.

Wednesday

84° 62°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Wednesday

Sunny, with a high near 84. North wind 5 to 8 mph.

Night

Mostly clear, with a low around 62. North northeast wind 1 to 5 mph.

Grantsburg, IL Weather Analysis Tools