• TEMP: This is the temperature in Fahrenheit outside the front door of the lab.
  
  
• HI: The red arrow shows the highest temperature outside today.
  
  
• LO: The green arrow shows the lowest temperature outside today.
  
  
• WIND: This is how fast the wind is blowing on the roof of the lab right now. It is measured in Miles Per Hour (mph). 5mph is just a breeze. 15 mph will mave a flag wave, 25 mph winds can turn umbrellas insdie out- is it windy right now?
  
  
• WIND DIRECTION: The blue guage is the direction that the wind is blowing from. In this part of the country, if it is blowing from the east, it may get humid and bring rain or snow as the wind carries moisture from the Atlantic Ocean. Generally wind from the NORTH brings COOLER air and wind from the SOUTH brings WARMER weather.
  
  
• GUST: This is the highest wind speed measured in the last 15 minutes.
  
  
• HUMIDITY: This is the amount of humidity in the air. Humid air in the summer can make it feel even hotter. When it rains, there is obviously more humidity in the air.
  
  
• BAROMETER: This is the BAROMETER, or measure of air pressure - the lower the number the more likely it will rain or be stormy. The higher the number the more likely it will be clear weather.
  
  
• RAIN: This is how much it has rained outside the lab today.
  
  
• TOTAL RAIN: This is the total amount of rain in inches we have had outside the lab since January 2003.
  

The picture in the upper right shows what the current weather is like out the window. That image comes from sensors at Logan Airport in Boston, pretty cool, huh?

(The weather is updated every minute - you may have to click the "reload" or "refresh" button on your browser to see the latest weather)