Guernsey, WY Weather Forecast
Local 7-day forecast
Mostly Cloudy then Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Guernsey, WY in one place.
A chance of rain showers after noon. Mostly cloudy, with a high near 74. Southwest wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.
Local Weather Overview
This forecast page for Guernsey, WY is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 16, 2026 12:09 AM MDT.
The active forecast window currently covers Apr 16 to Apr 22, 2026 for Guernsey, WY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 16 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 12:09 AM MDT
- Forecast office
- CYS
- Source
- NOAA / NWS
Daily Outlook
This Week in Guernsey
Tuesday looks like the warmest upcoming period in Guernsey at 81 degrees F.
Friday Night is the coolest period ahead with temperatures near 20 degrees F.
The strongest winds are forecast for Thursday Night at about 20 to 35 mph WNW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 12:09 AM MDT
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- CYS
- Radar station
- KCYS
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers before midnight, then rain and snow showers likely. Mostly cloudy. Low around 28, with temperatures rising to around 32 overnight. West northwest wind 20 to 35 mph, with gusts as high as 50 mph. Chance of precipitation is 60%.
Snow before 8am, then snow and patchy blowing snow. Mostly cloudy, with a high near 39. North northwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
A slight chance of snow before midnight. Partly cloudy, with a low around 20. Northwest wind 10 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 20%. New snow accumulation of less than half an inch possible.
Sunny, with a high near 53.
Mostly clear, with a low around 28.
Sunny, with a high near 71.
Mostly clear, with a low around 37.
Mostly sunny, with a high near 78.
Partly cloudy, with a low around 42.
Sunny, with a high near 81.
Partly cloudy, with a low around 46.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 16
|
Mostly Cloudy then Chance Rain Showers
|
74°F |
10 to 20 mph
SW
|
|
Thursday Night
Apr 16
|
Chance Rain Showers then Rain And Snow Showers Likely
|
28°F |
20 to 35 mph
WNW
|
|
Friday
Apr 17
|
Light Snow And Patchy Blowing Snow
|
39°F |
20 to 25 mph
NNW
|
|
Friday Night
Apr 17
|
Slight Chance Light Snow then Partly Cloudy
|
20°F |
10 to 25 mph
NW
|
|
Saturday
Apr 18
|
Sunny
|
53°F |
10 to 20 mph
WNW
|
|
Saturday Night
Apr 18
|
Mostly Clear
|
28°F |
5 to 15 mph
W
|
|
Sunday
Apr 19
|
Sunny
|
71°F |
5 to 10 mph
WSW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
37°F |
5 to 10 mph
WSW
|
|
Monday
Apr 20
|
Mostly Sunny
|
78°F |
5 to 10 mph
W
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
42°F |
5 to 10 mph
WNW
|
|
Tuesday
Apr 21
|
Sunny
|
81°F |
5 to 10 mph
SW
|
|
Tuesday Night
Apr 21
|
Partly Cloudy
|
46°F |
5 to 10 mph
SW
|
|
Wednesday
Apr 22
|
Mostly Sunny then Chance Showers And Thunderstorms
|
76°F |
5 to 20 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Guernsey.
