National Weather Service United States Department of Commerce

Critical Fire Weather and Severe Thunderstorm Threats This Week

Gusty winds and low relative humidity will contribute to critical fire weather Monday over parts of the central and southern High Plains. Scattered to widespread severe thunderstorms may bring damaging winds, large hail, and tornadoes Monday through Thursday over the lower Mississippi River Valley and southern Plains into the Midwest and Ohio Valley. Read More >

 

Temperature Conversion
Enter a number then click on the appropriate number to see the result.
Fahrenheit ( o F )
Celsius ( o C )

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Windchill Calculation
Enter in the air temperature ( Tair ) in degrees Fahrenheit and wind speed in mph, then click on the Calculate WC to compute the windchill ( WC ).
Tair mph

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Relative Humidity Calculation
Enter in the air temperature ( Tair ) and dew point temperature ( Tdp) in degrees Fahrenheit ( oF ) then click on the Calculate RH to compute the relative humidity ( RH )
Tair Tdp

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Heat Index Calculation
Enter in the air temperature ( Tair ) in degrees Fahrenheit and relative humidity ( RH ) in percent, then click on the Calculate HI to compute the heat index ( HI ).
Tair RH

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Wind Chill Table