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Gurnee (IL) Weather and Climate: A Comprehensive Guide

The climate in Gurnee is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to very cold in the cooler months. It receives a reasonable amount of rain/snowfall. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

In Gurnee, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 27°C in July. In February, the coolest month of the year, temperatures drop to a very cold -1°C.

At night, you can expect cooler temperatures, with averages dropping to around -9°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

On average, Gurnee receives a reasonable amount of rain/snowfall, with an annual precipitation of 977 mm. Gurnee can be quite wet during June, receiving approximately 107 mm of precipitation over 13 rainy days.

In contrast January, experiences much drier conditions, with 41 mm of snowfall, spread across 10 snowy days. For more details, please visit our Gurnee Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Gurnee can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.6 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 3.6 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Chicago, the United States of America (43 KM, 26 Miles).

Daily hours of sunshine

Data from: Chicago, the United States of America (43 KM, 26 Miles).

Forecast for Gurnee (IL)

Wed   Dec 25
3°C | -2°C
E 3 m/s
overcast and no rain

overcast and no rain

Thu   Dec 26
6°C | 2°C
S 4 m/s
0.2 mm
overcast and  chance of slight rain

overcast and chance of slight rain

Fri   Dec 27
8°C | 4°C
SE 6 m/s
2.8 mm
overcast and rain

overcast and rain

The best time of year to visit Gurnee in the United States of America

During the months of June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is winter in Gurnee?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Gurnee?
    July has an average maximum temperature of 27°C and is the warmest month of the year.
  • Which is the coldest month in Gurnee?
    The coldest month is February with an average maximum temperature of -1°C.
  • Which is the wettest month in Gurnee?
    June tops the wettest month list with 107 mm of rainfall.
  • Which is the driest month in Gurnee?
    January is the driest month with 41 mm of precipitation.
  • Which is the sunniest month in Gurnee?
    July is the sunniest month with an average of 319 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.