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Current Statewide Variable Speed Limits


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Interstate 25 - Northbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time
Between Douglas (mp 140.090) and Casper (mp 189.490) 184.95 186.05 45 Apr 23, 2026, 08:08 AM
186.05 187.21 45 Apr 23, 2026, 08:08 AM
187.21 187.92 45 Apr 23, 2026, 08:08 AM
187.92 188.97 45 Apr 23, 2026, 08:08 AM

Interstate 25 - Southbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time
Between Casper (mp 189.490 ) and Douglas (mp 140.090) 189.06 187.92 45 Apr 23, 2026, 08:08 AM
187.92 187.21 45 Apr 23, 2026, 08:08 AM
187.21 186 45 Apr 23, 2026, 08:08 AM

Interstate 80 - Eastbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time
Between the Utah State Line (mp 0.000) and Rock Springs (mp 104.790) 88.859 90.08 45 Apr 23, 2026, 08:08 AM
90.08 90.45 35 Apr 23, 2026, 08:08 AM
90.45 91.99 45 Apr 23, 2026, 08:08 AM
Between Rock Springs (mp 104.790) and Rawlins (mp 215.570) 140.09 143.14 65 Apr 23, 2026, 08:08 AM
143.14 145.44 65 Apr 23, 2026, 08:08 AM
145.44 146.51 65 Apr 23, 2026, 08:08 AM
Between Rawlins (mp 215.570) and Laramie (mp 313.200) 238.8 246.7 65 Apr 23, 2026, 08:11 AM
246.7 250 65 Apr 23, 2026, 08:11 AM


Interstate 80 - Westbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time
Between Rawlins (mp 215.570 ) and Rock Springs (mp 104.790) 146.51 143.14 65 Apr 23, 2026, 08:08 AM
143.14 141.62 65 Apr 23, 2026, 08:08 AM
Between Rock Springs (mp 104.790 ) and the Utah State Line (mp 0.000) 90.45 88.85 35 Apr 23, 2026, 08:08 AM
Interstate 90 - Eastbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time

No reduced speed limits in effect.


Interstate 90 - Westbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time

No reduced speed limits in effect.


Wyoming Highway 28 - Eastbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time
Between Farson (mp 28.230) and US 287 (mp 94.170) 30.43 35 65 Apr 23, 2026, 08:18 AM
35 41.34 65 Apr 23, 2026, 08:18 AM
41.34 47.04 65 Apr 23, 2026, 08:18 AM
47.04 49.15 65 Apr 23, 2026, 08:18 AM
49.15 58 65 Apr 23, 2026, 08:18 AM
58 64.4 65 Apr 23, 2026, 08:18 AM

Wyoming Highway 28 - Westbound
Location From Milepost To Milepost Speed Limit (MPH) Date/Time
Between US 287 (mp 94.170 ) and Farson (mp 28.230) 62.3 58 65 Apr 23, 2026, 08:18 AM
58 48.8 65 Apr 23, 2026, 08:18 AM
48.8 46.7 65 Apr 23, 2026, 08:18 AM
46.7 41.34 65 Apr 23, 2026, 08:18 AM
41.34 35 65 Apr 23, 2026, 08:18 AM
35 30.43 65 Apr 23, 2026, 08:18 AM