Can you predict the temperature with crickets?
The short answer is yes you can get a rough estimate of the temperature outside. That is due to the frequency of chirping varies according to the temperature.
To get a rough estimate of the temperature in degrees Fahrenheit, count the number of chirps in 15 seconds and then add 37. The number you get will be an approximation of the outside temperature.
With still football season and other sports more people are spending time outside. So you can get your rough estimate then check the temperature to see how close your estimate was.