Weather radar Chicago
Real-time precipitation radar · Illinois · United States
Chicago climate table – average temperature, precipitation & sunshine hours
The climate table for Chicago shows long-term monthly averages (2000–2023): average high and average low temperature in °C, monthly precipitation (mm), rainy days and sunshine hours per month. Data source: ERA5 reanalysis (ECMWF) via the WDTEC Climate Archive.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | -0.6° | 1.8° | 8.3° | 12.3° | 17.8° | 24.6° | 26° | 26° | 23.5° | 17.2° | 9.3° | 3.5° |
| Avg low (°C) | -6° | -5.4° | 0.6° | 4.8° | 10.2° | 16.5° | 19° | 18.9° | 15.5° | 9.7° | 2.6° | -2.2° |
| Precipitation (mm) | 68 | 48 | 93 | 81 | 95 | 106 | 88 | 66 | 53 | 93 | 56 | 66 |
| Rainy days | 10 | 8 | 12 | 11 | 11 | 9 | 11 | 10 | 7 | 11 | 8 | 10 |
| Sunshine hours | 164 | 215 | 256 | 281 | 331 | 363 | 369 | 360 | 301 | 251 | 189 | 149 |
| Humidity | 74% | 69% | 68% | 67% | 69% | 69% | 74% | 73% | 71% | 69% | 68% | 74% |
Best time to visit Chicago
The best time to visit Chicago is typically September. In this month the average high is 23.5°C, precipitation is 53 mm and sunshine duration is 301 hours. The annual average high is 14.1°C, total annual precipitation is 913 mm (118 rainy days/year) and annual sunshine is 3229 hours.
Frequently asked questions about the weather in Chicago
How up to date is the weather radar for Chicago?
The weather radar for Chicago is updated every 5 minutes with new radar data from the US NEXRAD network. A 2-hour forecast animation is also available. Rainfall probability, wind gusts and UV index are available up to 14 days in advance.
What weather data is available for Chicago?
Besides the rain radar, RadarWeather provides for Chicago: rainfall probability, thunderstorm warning (CAPE index), wind gusts, UV index, air pressure, humidity, dew point, sunshine hours, snow line and a 14-day forecast based on ICON-D2, ECMWF IFS and GFS.
When are thunderstorms expected in Chicago?
The thunderstorm potential for Chicago is calculated from the CAPE index and lightning potential. Active storm cells and severe weather warnings are visible on the radar map in real time. Thunderstorm warnings are issued automatically as soon as storm cells are detected near Chicago.
What is the climate like in Chicago?
Chicago has an annual average high of 14.1°C. The warmest month is July (avg high 26°C), the coldest January (avg low -6°C). The wettest month is June with 106 mm, the driest February with 48 mm. Total annual precipitation is 913 mm (118 rainy days). Annual sunshine is 3229 hours.
Weather radar near Chicago
Milwaukee · Indianapolis · Detroit · Cincinnati · St. Louis · Louisville · Columbus · Cleveland
All cities in the USA →