If the sensors are analog then it should be no problem. But are they!?! If I look at what Sparkfun has to offer then there are various temperature sensors. Please be more specific which one you intend to use.
The air quality sensor (https://www.sparkfun.com/products/14193
) is mostly a digital sensor, communicated with over (digital) I2C. And that will cause a problem if it is operated at 5 volt. The chip has an absolute limit to 3.6 volt. Only the NTC-thermistor would provide an analog voltage based on temperature (if it is soldered in and connected to one of the analog inputs). That voltage will not reach above 3.3 volt. However, the sensor chip already provides a means of reading the voltages of both the NTC and reference resistor down to 1 vmiliVolt. (Much )better than the Redboard can with it's 1024-bit resolution.
So the proper question is, why should you? And is it not really digital (I2C)?