US Highway Forecast: I-15

US Highway Forecast: I-15

The short-term forecasts below are for cities or towns located along the specified highway. Click on a city or town to see its current conditions as well as long-term forecast.

Interstate running North to South:  
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Interstate running West to East:  

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Short Term Forecast

City Thursday
4pm 		Thursday
7pm 		Thursday
10pm
Sweetgrass, Montana
Variable cloudiness
4°C
Variable cloudiness
Variable cloudiness
1°C
Variable cloudiness
Cloudy periods
1°C
Cloudy periods
Las Vegas, Nevada
Mainly clear
20°C
Mainly clear
Mainly clear
14°C
Mainly clear
Mainly clear
11°C
Mainly clear
Cedar City, Utah
Clear
8°C
Clear
Clear
3°C
Clear
Clear
-1°C
Clear
Salt Lake City, Utah
Clear
8°C
Clear
Clear
3°C
Clear
Clear
1°C
Clear
Helena, Montana
Cloudy periods
4°C
Cloudy periods
Cloudy periods
0°C
Cloudy periods
Cloudy periods
-2°C
Cloudy periods
Great Falls, Montana
Cloudy periods
5°C
Cloudy periods
Cloudy periods
2°C
Cloudy periods
Cloudy periods
1°C
Cloudy periods
Ontario, California
Clear
25°C
Clear
Clear
17°C
Clear
Mainly clear
14°C
Mainly clear
San Diego, California
Mainly clear
19°C
Mainly clear
Mainly clear
16°C
Mainly clear
Fog patches
14°C
Fog patches
Idaho Falls, Idaho
Clear
3°C
Clear
Clear
-1°C
Clear
Clear
-3°C
Clear
Butte, Montana
Mainly clear
2°C
Mainly clear
Mainly clear
-4°C
Mainly clear
Cloudy periods
-8°C
Cloudy periods
Barstow, California
Clear
20°C
Clear
Clear
13°C
Clear
Mainly clear
10°C
Mainly clear




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