They give it a "Spectator Index" of 1
Spectator Index
The Spectator Index provides one overall forecast for how comfortable conditions will be while attending your favorite outdoor pastimes, or on your way to indoor venues.
A variety of weather factors are used to calculate the Spectator Index, including temperature, probability of precipitation, humidity, wind speed, and cloud cover. The best index values result from shirt-sleeve temperatures, minimal chances of precipitation, low humidity, light winds, and fair skies. Conversely, cold and stormy conditions will result in the lowest Spectator Index values, when a bit of extra gear may be required to maximize comfort level in the stands.
The Spectator Index is updated several times a day. Either a general index value to broadly describe a given day, or a specific index value to describe a given hour, is presented.
The scale for our Spectator Index is: Excellent (10), Very Good (9, 8), Good (7, 6), Fair (5, 4), Poor (3,2), Very Poor (1)
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