Yes. Click to it and scroll to the top of the page. You should see info like this:
Summary
"temperature": 20.5,
"humidity": 54,
"pressure": 969.29,
"wind_bearing": 293,
"wind_speed": 4.31,
"attribution": "Data provided by OpenWeatherMap",
"forecast": [
{
"datetime": 1529755200000,
"temperature": 19.6,
"precipitation": null,
"condition": "cloudy"
},
{
"datetime": 1529766000000,
"temperature": 18.5,
"precipitation": null,
"condition": "cloudy"
},
{
"datetime": 1529776800000,
"temperature": 16.8,
"precipitation": null,
"condition": "cloudy"
},
{
"datetime": 1529787600000,
"temperature": 16.4,
"precipitation": null,
"condition": "cloudy"
},
{
"datetime": 1529798400000,
"temperature": 15.3,
"precipitation": null,
"condition": "cloudy"
},
{
"datetime": 1529809200000,
"temperature": 19.1,
"precipitation": 0.015,
"condition": "rainy"
},
{
"datetime": 1529820000000,
"temperature": 19.1,
"precipitation": 0.49,
"condition": "rainy"
},
{
"datetime": 1529830800000,
"temperature": 18.3,
"precipitation": 0.515,
"condition": "rainy"
},
{
"datetime": 1529841600000,
"temperature": 19.1,
"precipitation": 0.9,
"condition": "rainy"
},
{
"datetime": 1529852400000,
"temperature": 16.5,
"precipitation": 1.87,
"condition": "rainy"
},
{
"datetime": 1529863200000,
"temperature": 14.7,
"precipitation": null,
"condition": "partlycloudy"
},
{
"datetime": 1529982000000,
"temperature": 14.3,
"precipitation": 0.07,
"condition": "rainy"
}
],
"friendly_name": "OpenWeatherMap"
If “precipitation” is null, you will not see it on chart