The Cheyenne Office of the National Weather Service has issued a frost advisory for the Cheyenne area and a large portion of southeast Wyoming and the Nebraska Panhandle for this evening.

Here is the weather service forecast for the Cheyenne area:

FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM MDT
WEDNESDAY...

The National Weather Service in Cheyenne has issued a Frost
Advisory, which is in effect from midnight tonight to 9 AM MDT
Wednesday.

* TIMING...Temperatures will fall into the middle 30s after
  midnight with low temperatures ranging between 31 to 35 by
  sunrise Wednesday.

* TEMPERATURE...Low to middle 30s

* IMPACTS...Widespread frost may damage or kill sensitive
  vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Frost Advisory means that widespread frost is expected.
Sensitive outdoor plants may be killed if left uncovered.

The areas highlighted in light purple in the map below are included in the warning.

Map of Forecast Area