Weather forecast for todayGrantsburg, IL

Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

Weather forecast for today

Current condition 4:33 am CDT

  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 0mphSW 220°
  • Humidity: 98%
  • Dewpoint: 43°F
  • Pressure: 30.25"Hg
  • Visibility: 8mi
  • UV index: 0
  • ▼
At the moment, in Grantsburg, an endless stretch of blue sky remains completely clear.
The temperature is a chilly 44.6°F. The current temperature is at the minimum anticipated for today.

Wednesday Oct 21, 2026

  • 77°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphNNE 22°
  • Humidity: 61%
  • UV index: 5
  • Sunrise: 7:08 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
Today, in Grantsburg, sun-filled conditions are expected to persist.
Temperature changes will be remarkable, ranging from a high of a moderately hot 77°F to a low of a chilly 44.6°F.
The forecast high of 77°F aligns more closely with September's typical high of 81.1°F than with October's usual 67.8°F.
Sunrise will be at 7:08 am and sunset at 6:10 pm; the daylight will last for 11h and 1min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 75°C.
Coldest hour: 7 am 43°C.

Chance of precipitation

Highest chance: 2%.

Hourly weather forecast

  • 6 am
  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 0mphN 0°
  • Humidity: 97%
  • Pressure: 30.27"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Sunrise: 7:08 am
  • 8 am
  • 46°F
  • Feels like:
    46°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 0mphN 0°
  • Humidity: 97%
  • Pressure: 30.27"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 10 am
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 0mphNE 34°
  • Humidity: 59%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 70°F
  • Feels like:
    70°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphNE 41°
  • Humidity: 38%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 2 pm
  • 75°F
  • Feels like:
    75°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNNE 23°
  • Humidity: 32%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 75°F
  • Feels like:
    75°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphNNE 16°
  • Humidity: 31%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphN 11°
  • Humidity: 43%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:10 pm
  • 8 pm
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 0mphNNE 28°
  • Humidity: 73%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 0mphN 10°
  • Humidity: 84%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Grantsburg, bright skies and dry conditions are anticipated.
The temperature will vary between a minimum of 42.8°F and a maximum of 75.2°F. The warmest part of the day will be from 2 pm to 4 pm.
The forecasted maximum is more resembling September's typical high of 81.1°F than the average for October. The lowest temperature is expected to be a couple of degrees lower than the average minimum in October, typically 49.6°F.
Updated: Oct 21, 2026 @ 09:33:08 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (4:33 am CDT) is 44.6°F.

On Wednesday, in Grantsburg, skies are expected to be clear and full of sunshine.

Today, the maximum temperature will be 77°F, while the minimum temperature will be 44.6°F.
The maximum temperature will be uncommonly higher than the average highest temperature of 67.8°F in October. The lowest temperature will be relatively lower than the average low of 49.6°F.

On Wednesday, in Grantsburg, sunrise will be at 7:08 am and sunset at 6:10 pm (CDT).

In Grantsburg, the length of the day today will be 11h and 1min.
Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

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Grantsburg, Illinois, USA

  • en: Grantsburg, Illinois, USA
  • es: Grantsburg, Illinois, EE.UU.
  • hr: Grantsberg, Ilinois, SAD
  • mk: Grantsberg, Ilinois, SAD
  • sr: Grantsberg, Ilinois, SAD
  • zh: 格兰茨堡, 伊利诺伊, 美国
  • Latitude: 37.390370°
  • Longitude: -88.748555°
  • Elevation: 387 ft
  • Current time: 4:33am CDT
  • Sunrise: 7:08 am CDT
  • Sunset: 6:10 pm CDT
  • Timezone: America/Chicago

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