What had been a freeze watch for much of southeast Wyoming has now been upgraded to a freeze warning.

That's according to the Cheyenne Office of the National Weather Service.

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The agency posted the following on it's website: Freeze Warning come into effect starting at 5 PM and run through noon Tuesday for all zones outside the mountains. Near-record low temperatures between 12 to 28 degrees can be expected in the Warning area. In addition freeze watches are in effect for Tuesday night for zones east of the Laramie Range and includes most of Converse County. These later freeze watches run through 10 AM Wednesday Morning.


Cheyenne, Laramie Forecasts

Cheyenne Forecast

This Afternoon
Snow showers likely before 4pm, then snow showers likely, possibly mixed with rain. Some thunder is also possible. Cloudy, with a steady temperature around 33. North northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than one inch possible.
Tonight
A 40 percent chance of snow showers before 9pm. Widespread frost after 2am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 23. North wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.
Tuesday
Widespread frost before 10am. Otherwise, partly sunny, with a high near 47. West wind around 5 mph becoming east in the afternoon.
Tuesday Night
A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 32. South wind 10 to 15 mph.
Wednesday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 56. South wind 5 to 15 mph.
Wednesday Night
Mostly cloudy, with a low around 35.
Thursday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 61. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 35.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 36.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 44.
Memorial Day
Sunny, with a high near 78.
Laramie Forecast
  • Winter Weather Advisory until May 18, 06:00 PM MDT
  • Freeze Watch in effect from May 20, 12:00 AM MDT until May 20, 08:00 AM MDT
  • Freeze Warning in effect from May 18, 08:00 PM MDT until May 19, 10:00 AM MDT
  • This Afternoon
    Snow showers likely. Some thunder is also possible. Cloudy, with a high near 34. Northeast wind around 15 mph. Chance of precipitation is 70%. Total daytime snow accumulation of around an inch possible.
    Tonight
    Snow showers likely, mainly before 9pm. Widespread frost between 3am and 4am. Otherwise, mostly cloudy, with a low around 20. North northeast wind 5 to 15 mph becoming west southwest after midnight. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
    Tuesday
    Widespread frost between 10am and 1pm. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 41. Calm wind becoming east northeast around 5 mph in the afternoon.
    Tuesday Night
    A slight chance of rain and snow showers before 9pm. Widespread frost between 9pm and 11pm. Otherwise, mostly cloudy, with a low around 29. South wind 5 to 10 mph. Chance of precipitation is 20%.
    Wednesday
    Widespread frost, mainly before 7am. Otherwise, mostly sunny, with a high near 52. South wind 5 to 10 mph becoming northwest in the afternoon.
    Wednesday Night
    Partly cloudy, with a low around 31.
    Thursday
    A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 57.
    Thursday Night
    Rain showers likely before 3am, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 34.
    Friday
    A slight chance of rain and snow showers before 9am, then a chance of rain showers. Some thunder is also possible. Partly sunny, with a high near 57.
    Friday Night
    Partly cloudy, with a low around 34.
    Saturday
    A slight chance of showers and thunderstorms. Mostly sunny, with a high near 64.
    Saturday Night
    Mostly clear, with a low around 39.
    Sunday
    Sunny, with a high near 70.
    Sunday Night
    Mostly clear, with a low around 42.
    Memorial Day
    A slight chance of showers and thunderstorms. Sunny, with a high near 74.

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