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Sparta (IL) Weather and Climate: A Comprehensive Guide

The temperature in Sparta can vary quite a bit throughout the year. Temperatures can be very warm during the warmest months, and cold during the cooler months. It is also known for its large amounts of rain/snowfall. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

Visitors to Sparta can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a very warm 31°C in July to a chilly 5°C in the coolest month, January.

Nights are cooler, with lows often dropping to around -5°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Sparta is known for its substantial rain/snowfall, with annual precipitation reaching 1212 mm. The climate in Sparta shows significant variation throughout the year. Expect high rainfall in May, with an average of 148 mm of precipitation over 14 rainy days.

In contrast, January offers drier and sunnier days, with around 56 mm of snow/rainfall over 8 snowy/rainy days. For more details, please visit our Sparta Precipitation page.

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

Sunshine over the year

For those who appreciate different seasons, Sparta serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.4 hours of sunshine daily, and embrace the darker days in December, offering only 4.3 hours of daily sunlight. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: St. Louis, the United States of America (70 KM, 43 Miles).

Daily hours of sunshine

Data from: St. Louis, the United States of America (70 KM, 43 Miles).

Forecast for Sparta (IL)

Wed   Dec 25
8°C | 6°C
SE 4 m/s
17 mm
broken clouds and rain

broken clouds and rain

Thu   Dec 26
13°C | 7°C
S 4 m/s
0.4 mm
broken clouds and small chance of slight rain

broken clouds and small chance of slight rain

Fri   Dec 27
15°C | 9°C
SE 5 m/s
8.5 mm
overcast and rain

overcast and rain

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

During the months of May and October 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:
  • Which is the warmest month in Sparta?
    July has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Sparta?
    The coldest month is January with an average maximum temperature of 5°C.
  • Which is the wettest month in Sparta?
    May tops the wettest month list with 148 mm of rainfall.
  • Which is the driest month in Sparta?
    January is the driest month with 56 mm of precipitation.
  • Which is the sunniest month in Sparta?
    July is the sunniest month with an average of 311 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.