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Highway Travel Weather

Interstate 15 – Montana to California

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Oct 14, 2026 - Wed
Great Falls, United States
overcast clouds
47°F overcast clouds
Wind 21 mph, SW
Humidity 68%
Pressure 1.02 bar
Day Cond. Temp. Wind Humidity PressurePres.
wed oct 14
broken clouds
 47/40°F 12 mph, SW 61% 1.02 bar
thu oct 15
sky is clear
 48/35°F 7 mph, N 53% 1.04 bar
fri oct 16
few clouds
 66/52°F 15 mph, SW 28% 1.03 bar
sat oct 17
broken clouds
 66/57°F 18 mph, SW 28% 1.01 bar
sun oct 18
sky is clear
 55/48°F 7 mph, NNW 52% 1.02 bar
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Oct 14, 2026 - Wed
Butte, United States
overcast clouds
34°F overcast clouds
Wind 3 mph, SE
Humidity 86%
Pressure 1.03 bar
Day Cond. Temp. Wind Humidity PressurePres.
wed oct 14
broken clouds
 36/34°F 7 mph, N 80% 1.02 bar
thu oct 15
sky is clear
 39/33°F 5 mph, E 66% 1.04 bar
fri oct 16
sky is clear
 54/41°F 5 mph, ESE 42% 1.03 bar
sat oct 17
broken clouds
 54/44°F 7 mph, SSW 43% 1.02 bar
sun oct 18
sky is clear
 53/45°F 8 mph, SSW 49% 1.02 bar
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Oct 14, 2026 - Wed
Idaho Falls, United States
few clouds
44°F few clouds
Wind 5 mph, N
Humidity 76%
Pressure 1.02 bar
Day Cond. Temp. Wind Humidity PressurePres.
wed oct 14
few clouds
 46/41°F 5 mph, SSW 73% 1.02 bar
thu oct 15
sky is clear
 56/41°F 9 mph, N 41% 1.03 bar
fri oct 16
scattered clouds
 57/40°F 6 mph, N 45% 1.03 bar
sat oct 17
broken clouds
 54/47°F 4 mph, SW 49% 1.03 bar
sun oct 18
few clouds
 55/48°F 5 mph, N 45% 1.02 bar
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Oct 14, 2026 - Wed
Salt Lake City, United States
broken clouds
48°F broken clouds
Wind 11 mph, NNW
Humidity 87%
Pressure 1.02 bar
Day Cond. Temp. Wind Humidity PressurePres.
wed oct 14
light rain
 49/43°F 10 mph, WNW 82% 1.02 bar
thu oct 15
sky is clear
 59/45°F 8 mph, W 54% 1.03 bar
fri oct 16
sky is clear
 63/45°F 9 mph, ENE 35% 1.03 bar
sat oct 17
sky is clear
 63/50°F 3 mph, S 32% 1.03 bar
sun oct 18
broken clouds
 62/52°F 2 mph, ENE 39% 1.02 bar
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Oct 14, 2026 - Wed
Las Vegas, United States
clear sky
65°F clear sky
Wind 13 mph, N
Humidity 35%
Pressure 1.02 bar
Day Cond. Temp. Wind Humidity PressurePres.
wed oct 14
sky is clear
 66/65°F 10 mph, NW 33% 1.02 bar
thu oct 15
sky is clear
 74/69°F 11 mph, NNE 26% 1.02 bar
fri oct 16
sky is clear
 77/64°F 12 mph, NE 23% 1.03 bar
sat oct 17
overcast clouds
 72/65°F 7 mph, ENE 27% 1.02 bar
sun oct 18
sky is clear
 73/64°F 5 mph, E 24% 1.02 bar
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Oct 14, 2026 - Wed
San Bernardino, United States
clear sky
71°F clear sky
Wind 4 mph, NNE
Humidity 31%
Pressure 1.02 bar
Day Cond. Temp. Wind Humidity PressurePres.
wed oct 14
sky is clear
 72/61°F 8 mph, N 32% 1.02 bar
thu oct 15
sky is clear
 79/70°F 17 mph, NNE 22% 1.02 bar
fri oct 16
scattered clouds
 77/65°F 15 mph, N 28% 1.02 bar
sat oct 17
sky is clear
 76/59°F 10 mph, N 26% 1.02 bar
sun oct 18
sky is clear
 75/60°F 7 mph, NNE 27% 1.02 bar
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Oct 14, 2026 - Wed
San Diego, United States
clear sky
72°F clear sky
Wind 3 mph, SSE
Humidity 45%
Pressure 1.02 bar
Day Cond. Temp. Wind Humidity PressurePres.
wed oct 14
sky is clear
 74/64°F 7 mph, NW 45% 1.02 bar
thu oct 15
sky is clear
 85/72°F 9 mph, NW 45% 1.02 bar
fri oct 16
sky is clear
 84/76°F 8 mph, NW 35% 1.01 bar
sat oct 17
sky is clear
 84/74°F 6 mph, NNE 24% 1.02 bar
sun oct 18
sky is clear
 80/73°F 8 mph, NW 30% 1.02 bar