Guernsey, WY Weather Forecast
Local 7-day forecast
Widespread Frost then Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Guernsey, WY in one place.
Widespread frost before noon. Sunny. High near 58, with temperatures falling to around 56 in the afternoon. South southwest wind 5 to 10 mph.
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: Oct 15, 2026 7:26 PM MDT.
The active forecast window currently covers Oct 16 to Oct 21, 2026 for Guernsey, WY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 16 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 7:26 PM MDT
- Forecast office
- CYS
- Source
- NOAA / NWS
Daily Outlook
This Week in Guernsey
Tuesday looks like the warmest upcoming period in Guernsey at 75 degrees F.
Friday Night is the coolest period ahead with temperatures near 32 degrees F.
The strongest winds are forecast for Friday at about 5 to 10 mph SSW.
The forecast from Oct 16 through Oct 21 stays mostly dry.
Forecast Details
- Last updated
- Oct 15, 2026 7:26 PM 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
Clear, with a low around 32. South wind 0 to 10 mph.
Sunny, with a high near 73. West southwest wind 0 to 5 mph.
Mostly clear, with a low around 41.
Sunny, with a high near 68.
Mostly clear, with a low around 37.
Sunny, with a high near 69.
Clear, with a low around 41.
Sunny, with a high near 75.
Mostly clear, with a low around 46.
Sunny, with a high near 75.
Partly cloudy, with a low around 47.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Oct 16
|
Widespread Frost then Sunny
|
58°F |
5 to 10 mph
SSW
|
|
Friday Night
Oct 16
|
Clear
|
32°F |
0 to 10 mph
S
|
|
Saturday
Oct 17
|
Sunny
|
73°F |
0 to 5 mph
WSW
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
41°F |
5 mph
WSW
|
|
Sunday
Oct 18
|
Sunny
|
68°F |
5 to 10 mph
NNW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
37°F |
0 to 5 mph
ESE
|
|
Monday
Oct 19
|
Sunny
|
69°F |
0 to 5 mph
SE
|
|
Monday Night
Oct 19
|
Clear
|
41°F |
0 to 5 mph
SE
|
|
Tuesday
Oct 20
|
Sunny
|
75°F |
0 to 5 mph
SE
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
46°F |
0 to 5 mph
SSE
|
|
Wednesday
Oct 21
|
Sunny
|
75°F |
0 to 5 mph
SSW
|
|
Wednesday Night
Oct 21
|
Partly Cloudy
|
47°F |
0 to 5 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Guernsey.
