1. Weather Forecasts

2. Temperature
Temperature – how hot or how cold the air is Instrument: Thermometer Units: degrees C or degrees F

3. Humidity
Humidity – the amount of water vapor in the air Instrument: Hygrometer Units: 0 – 100% (percentage of the maximum water the air can hold)

4. Wind Direction
Wind Direction – the compass direction from which the wind is coming from Instrument: Wind Vane Units: Compass direction (N, SW, ESE, etc.)

5. Wind Speed
Wind Speed – how fast the air is moving past a measuring point Instrument: Anemometer Units: mph, meters per second, etc.

6. Air Pressure
Air Pressure – the force of the air pushing in all directions Instrument: Barometer Units: millibars

7. Visibility
Visibility – the distance one can see through the air Instrument: Eyesight Units: miles