Local Forecast

Grantsburg, IL Weather Forecast & Alerts

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

No Active Alerts

Hour-by-Hour  Current Observation

Saturday 11:45 AM CDTSaturday 11:45 AM

°F °C
Regional Observations →
82°F

Mostly Cloudy

  • 89° / 71° High / Low
  • 86° Feels Like
  • 0% Chance of Rain

Wind

5 mph

SSE

UV Index

7

High

Humidity

66%

Dew 69°F

Sun

6:05 AM · 7:55 PM

Rise · Set

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

5-Day Outlook

Through Wednesday

Local Radar →

Saturday

89° 71°

Isolated T-storm

Overnight: Partly Cloudy

Detailed forecast

Saturday

A slight chance of showers and thunderstorms after 1pm. Mostly cloudy. High near 89, with temperatures falling to around 87 in the afternoon. West southwest wind 0 to 3 mph. Chance of precipitation is 20%.

Night

Patchy fog after 4am. Partly cloudy. Low around 70, with temperatures rising to around 72 overnight. South southwest wind around 2 mph.

Sunday

91° 71°

Partly Sunny

Overnight: Mostly Clear

Detailed forecast

Sunday

Patchy fog before 9am. Sunny, with a high near 91. South wind 0 to 7 mph.

Night

Mostly clear, with a low around 71. South wind 1 to 5 mph.

Monday

93° 75°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Monday

Sunny, with a high near 92. South southwest wind 2 to 8 mph.

Night

Mostly clear, with a low around 74. South southwest wind 2 to 6 mph.

Tuesday

93° 75°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Tuesday

Sunny, with a high near 93. Southwest wind 5 to 9 mph.

Night

Mostly clear, with a low around 75. South southwest wind 3 to 7 mph.

Wednesday

91° 73°

Chance of Scattered Thunderstorms

Overnight: Chance of Scattered Thunderstorms

Detailed forecast

Wednesday

A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 92. Southwest wind 5 to 8 mph.

Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southwest wind 2 to 7 mph.

Grantsburg, IL Weather Analysis Tools