Lost Springs, WY Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Lost Springs, WY in one place.
Sunny. High near 51, with temperatures falling to around 49 in the afternoon. North northwest wind around 25 mph, with gusts as high as 40 mph.
Local Weather Overview
This forecast page for Lost Springs, 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 7:44 PM MDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Lost Springs, WY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 7:44 PM MDT
- Forecast office
- CYS
- Source
- NOAA / NWS
Daily Outlook
This Week in Lost Springs
Tuesday looks like the warmest upcoming period in Lost Springs at 72 degrees F.
Tonight is the coolest period ahead with temperatures near 20 degrees F.
The strongest winds are forecast for This Afternoon at about 25 mph NNW.
The forecast from Oct 15 through Oct 21 stays mostly dry.
Forecast Details
- Last updated
- Oct 15, 2026 7:44 PM MDT
- Coverage
- 8 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
Widespread frost after 3am. Mostly clear. Low around 20, with temperatures rising to around 22 overnight. North northwest wind 5 to 25 mph, with gusts as high as 40 mph.
Widespread frost before 9am. Sunny, with a high near 55. Southwest wind 5 to 10 mph.
Clear, with a low around 28. South wind 5 to 10 mph.
Sunny, with a high near 71. Southwest wind 0 to 10 mph.
Mostly clear, with a low around 37.
Sunny, with a high near 64.
Partly cloudy, with a low around 35.
Sunny, with a high near 66.
Mostly clear, with a low around 39.
Sunny, with a high near 72.
Mostly clear, with a low around 43.
Sunny, with a high near 71.
Partly cloudy, with a low around 43.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 15
|
Sunny
|
51°F |
25 mph
NNW
|
|
Tonight
Oct 15
|
Mostly Clear then Widespread Frost
|
20°F |
5 to 25 mph
NNW
|
|
Friday
Oct 16
|
Widespread Frost then Sunny
|
55°F |
5 to 10 mph
SW
|
|
Friday Night
Oct 16
|
Clear
|
28°F |
5 to 10 mph
S
|
|
Saturday
Oct 17
|
Sunny
|
71°F |
0 to 10 mph
SW
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
37°F |
5 mph
WSW
|
|
Sunday
Oct 18
|
Sunny
|
64°F |
5 to 10 mph
N
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
35°F |
5 mph
ESE
|
|
Monday
Oct 19
|
Sunny
|
66°F |
5 to 10 mph
SSE
|
|
Monday Night
Oct 19
|
Mostly Clear
|
39°F |
0 to 5 mph
SSE
|
|
Tuesday
Oct 20
|
Sunny
|
72°F |
0 to 10 mph
SSE
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
43°F |
0 to 5 mph
SSE
|
|
Wednesday
Oct 21
|
Sunny
|
71°F |
0 to 5 mph
SSW
|
|
Wednesday Night
Oct 21
|
Partly Cloudy
|
43°F |
0 to 5 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lost Springs.