Whatever algorithm they're using in the weather app is all messed up. It’s 88 degrees here, and the humidity is 66%. But it says the feels like temperature is 87 because the “wind is making it feel cooler”.
In reality, the heat index is really 99.
Yeah, I’m getting the same thing about 35 miles north of you.
Added: The dew point is 74 degrees here in CT. There’s no way the “Feels like” is only 88. This is infecting the Carrot weather app, too (Not surprising since it uses Weather Kit). Interestingly Accuweather is showing the same thing.
Don’t tell me AI doesn’t have value! See below
To calculate the "Feels Like" temperature, which is commonly referred to as the Heat Index, you need the actual air temperature and the dew point or relative humidity. In your case, you have the air temperature (88°F) and the dew point (74°F).
Using these values, we can use the Heat Index formula. The simplified formula for calculating the Heat Index in degrees Fahrenheit is:
\[ HI = c_1 + c_2T + c_3R + c_4TR + c_5T^2 + c_6R^2 + c_7T^2R + c_8TR^2 + c_9T^2R^2 \]
where:
- \( T \) is the air temperature in degrees Fahrenheit
- \( R \) is the relative humidity in percent
- The constants \( c_1 \) through \( c_9 \) are as follows:
- \( c_1 = -42.379 \)
- \( c_2 = 2.04901523 \)
- \( c_3 = 10.14333127 \)
- \( c_4 = -0.22475541 \)
- \( c_5 = -6.83783 \times 10^{-3} \)
- \( c_6 = -5.481717 \times 10^{-2} \)
- \( c_7 = 1.22874 \times 10^{-3} \)
- \( c_8 = 8.5282 \times 10^{-4} \)
- \( c_9 = -1.99 \times 10^{-6} \)
First, let's convert the dew point to relative humidity using the following formula:
\[ R = 100 \left( \frac{112 - 0.1T + D}{112 + 0.9T} \right)^8 \]
where:
- \( T \) is the temperature in degrees Fahrenheit
- \( D \) is the dew point in degrees Fahrenheit
Let's calculate the relative humidity \( R \) first.
Then, we will calculate the Heat Index \( HI \) using the values for \( T \) and \( R \).
I'll perform these calculations now.
The “Feels Like” temperature, or Heat Index, for an air temperature of 88°F and a dew point of 74°F is approximately 92.7°F. The calculated relative humidity is about 54.4%.