Setting Temp Limit to turn LED off

Heres the code. I would like to set it up so if the (inhouse_temp <= 65 degrees). It turns the (LED, LOW) How would I write something like this to perform that action?

// Libraries
#include <OneWire.h>
#include <DallasTemperature.h>

// 2 DS18B20 SENSORS, both datas connected to PIN 3.
#define ONE_WIRE_BUS 3

// Setup a oneWire instance to communicate with any OneWire devices
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to Dallas Temperature.
DallasTemperature sensors(&oneWire);

//declare variables, constants

float outhouse_temp=0.0;
float inhouse_temp=0.0;
byte LED=5;

void setup()

{
Serial.begin(9600); //Start library
sensors.begin();
pinMode(LED,OUTPUT);

}
void loop()
{
sensors.requestTemperatures();
inhouse_temp=sensors.getTempFByIndex(0);
outhouse_temp=sensors.getTempFByIndex(1);
delay(750);
Serial.print("Inside: "); Serial.println(inhouse_temp); //Prints Inside temp
Serial.print("Outside: "); Serial.println(outhouse_temp); //Prints Outside temp

if (inhouse_temp <= outhouse_temp) //IF statments controlling LED based off in/out temps.
{
digitalWrite(LED,HIGH);
}
else if (inhouse_temp <= ?? ); //HOW WOULD I CODE THIS TO SHUT OFF THE LED AT 65 DEGREESF??
{
digitalWrite(LED,LOW);
}
delay(500);
}

One way:

const float sixtyFiveDegrees = 65.0;

Just plug the variable name into the comparison.