Frontier, WY Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Frontier, WY in one place.
A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms between 9am and 11am, then a chance of showers and thunderstorms between 11am and 3pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 72. South wind 3 to 7 mph. Chance of precipitation is 50%.
Local Weather Overview
This forecast page for Frontier, 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: Sep 15, 2026 1:42 PM MDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Frontier, WY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 1:42 PM MDT
- Forecast office
- RIW
- Source
- NOAA / NWS
Daily Outlook
This Week in Frontier
Wednesday looks like the warmest upcoming period in Frontier at 72 degrees F.
Saturday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Friday at about 3 to 15 mph WSW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 1:42 PM MDT
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- RIW
- Radar station
- KMTX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 45. East southeast wind 2 to 7 mph. Chance of precipitation is 20%.
A slight chance of rain showers before noon, then showers and thunderstorms likely. Partly sunny, with a high near 72. South southeast wind around 7 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 43. South wind around 6 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 9am. Mostly sunny, with a high near 70. West southwest wind 3 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 37. Chance of precipitation is 20%.
Sunny, with a high near 66.
Mostly clear, with a low around 34.
Sunny, with a high near 68.
Mostly clear, with a low around 35.
Mostly sunny, with a high near 71.
Partly cloudy, with a low around 38.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Chance Showers And Thunderstorms
|
72°F |
3 to 7 mph
S
|
|
Wednesday Night
Sep 16
|
Slight Chance Showers And Thunderstorms then Mostly Cloudy
|
45°F |
2 to 7 mph
ESE
|
|
Thursday
Sep 17
|
Showers And Thunderstorms Likely
|
72°F |
7 mph
SSE
|
|
Thursday Night
Sep 17
|
Chance Showers And Thunderstorms
|
43°F |
6 mph
S
|
|
Friday
Sep 18
|
Chance Showers And Thunderstorms
|
70°F |
3 to 15 mph
WSW
|
|
Friday Night
Sep 18
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
37°F |
6 to 10 mph
W
|
|
Saturday
Sep 19
|
Sunny
|
66°F |
6 to 12 mph
WNW
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
34°F |
5 to 10 mph
WNW
|
|
Sunday
Sep 20
|
Sunny
|
68°F |
5 mph
WNW
|
|
Sunday Night
Sep 20
|
Mostly Clear
|
35°F |
3 mph
NNW
|
|
Monday
Sep 21
|
Mostly Sunny
|
71°F |
5 mph
ESE
|
|
Monday Night
Sep 21
|
Partly Cloudy
|
38°F |
5 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Frontier.