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I-25 Wyoming Road Conditions
Radar and live pavement conditions on the 300 miles of I-25 in Wyoming — plus closures, road work and city-by-city weather across the state.
Updated Sep 14, 2026 8:03 PM MDT · Mostly dry
Lowest 64°F near Casper, Wyoming · Highest wind 19 mph near Casper, Wyoming
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I-25 runs 300 miles across Wyoming. It passes Casper and Cheyenne.
- Interstate: I-25
- State: Wyoming
- Length in state: 300 mi
Weather data from Sep 14, 2026 8:03 PM MDT
64°F
75°F
19 mph
29.53-29.74 inHg
Current I-25 in Wyoming Conditions by State
Wyoming I-25 in Wyoming road conditions
Dry
- Casper 72°F · 10 mph wind · Dry
- Cheyenne 73°F · 6 mph wind · Dry
I-25 crosses 300 miles of Wyoming, from the Colorado line to its end in the state. That is 28% of I-25's 1,063 miles.
Inside Wyoming it meets I-80 at Cheyenne, and I-90.
By mile marker, I-25 passes Cheyenne 11 · Casper 188.
No full closures are reported on I-25 in Wyoming as of Sep 14, 2026 8:03 PM MDT, and no lane closures or roadworks either. Always check with the responsible state DOT before setting off.
| Place | Snow a year | Snow days | Freezing nights | Freeze–thaw days | First freeze | Last freeze | Days over 90°F |
|---|---|---|---|---|---|---|---|
| Casper | 74.9" | 48.4 | 183.4 | 142.5 | Sep 21 | May 25 | 30.6 |
| Cheyenne | 60.3" | 45 | 164.1 | 131.3 | Sep 30 | May 13 | 10.4 |
NOAA 1991–2020 Climate Normals, from 2 weather stations in Wyoming. A dash is a figure that station does not report, not a zero.
Every figure above is a town or a city. The summits are a different climate: Teton Pass has its own page with the readings at the top and a six-day summit forecast.
Towns Along I-25 in Wyoming
From Cheyenne to Buffalo, with the position of each town measured along this stretch itself — counted from the Cheyenne end, not from a state milepost, so it will not match the numbers on the signs.
- 10 mi Cheyenne 2.7 mi off the road
- 79 mi Wheatland
- 140 mi Douglas
- 164 mi Glenrock 1.3 mi off the road
- 185 mi Evansville 1.5 mi off the road
- 188 mi Casper 1.1 mi off the road
- 189 mi Mills 2.6 mi off the road
- 193 mi Bar Nunn
- 299 mi Buffalo 1.5 mi off the road
Places from the US Census Gazetteer and population estimates, both public domain; distances measured along this page's own route geometry.
Summaries fetched Sep 14, 2026 6:08 AM MDT
Casper, WY weather
- In Casper, WY, the current weather is clear with a temperature of 70°F and a dew point of 49°F
- The relative humidity is at 48%, and the atmospheric pressure is 29.53 inHg
- Winds are coming from the west-southwest at 12.8 mph
- A red flag warning is in effect from 12:00 PM to 8:00 PM today, indicating an increased risk of fire due to dry conditions and wind
- Additionally, there is a low risk of rain expected within the next hour, with rainfall rates projected at 0.12 in/h.
Cheyenne, WY weather
- Current weather conditions in Cheyenne, WY indicate a clear atmosphere with a temperature of 63°F and a dew point of 58°F, leading to a relative humidity of 83%
- The wind is blowing from the west-southwest at 9 to 18 mph
- Atmospheric pressure is measured at 29.6 inHg
- Visibility is good at 10.0 miles
- There are no active weather alerts at this time.
I-25 in Wyoming Road Weather FAQ
- Is Interstate 25 in Wyoming closed right now?
- No full closures are reported on I-25 in Wyoming. No lane closures or roadworks are reported either.
- What are I-25 in Wyoming road conditions today?
- The map on this page colors the route along I-25 in Wyoming by what is on the pavement right now — dry, wet, slush, snow or ice — from radar and surface data, last updated Sep 14, 2026 8:03 PM MDT. Right now temperatures run from 64°F to 75°F and the strongest wind is 19 mph.
- How often are I-25 in Wyoming road conditions updated?
- The road surface and weather layers are rebuilt whenever this page is opened with data more than ten minutes old, and refreshed on a schedule in between, so nothing here is more than about two hours old even on a road nobody has looked at. Closures and road blocks are re-imported from the state 511 feeds every fifteen minutes, and the written state-by-state summaries are refreshed daily. Every section on this page carries the time its data was fetched.
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