Weather World
Summit Motorway 39a, AZ 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Summit Motorway 39a, AZ Weather Forecast
Summit Motorway 39a, AZ Weather Forecast Date: 212 AM MST Mon Aug 03 2026
The area/counties/county of: Upper Santa Cruz River Valley/Altar Valley, including: Nogales.or toggle through each period.
Today... Partly cloudy in the morning, then showers and thunderstorms likely in the afternoon. Patchy blowing dust in the afternoon. Some thunderstorms May produce heavy rainfall in the afternoon. Highs 95 to 101. Chance of precipitation 70%.
Tonight... Breezy. Patchy blowing dust in the evening. Showers and thunderstorms likely in the evening, then slight chance of showers and thunderstorms after midnight. Some thunderstorms May produce heavy rainfall in the evening. Lows 69 to 75. South wind 15 to 25 mph with gusts to around 40 mph in the evening. Chance of precipitation 60%.
Tuesday... Partly cloudy in the morning, then mostly cloudy with a 30% chance of showers and thunderstorms in the afternoon. Highs 93 to 99.
Tuesday Night... Mostly cloudy with a 50% chance of showers and thunderstorms. Lows 67 to 73.
Wednesday... Mostly cloudy with a 40% chance of showers and thunderstorms. Highs 92 to 98.
Wednesday Night... Mostly cloudy with a 40% chance of showers and thunderstorms. Lows 67 to 73.
Thursday... Partly cloudy with a 40% chance of showers and thunderstorms. Highs 93 to 99.
Thursday Night... Mostly cloudy with a 50% chance of showers and thunderstorms. Lows 67 to 73.
Friday... Mostly cloudy with a 30% chance of showers and thunderstorms. Highs 93 to 99.
Friday Night... Mostly cloudy with a 50% chance of showers and thunderstorms. Lows 67 to 73.
Saturday... Partly cloudy with a 40% chance of showers and thunderstorms. Highs 92 to 98.
Saturday Night... Showers and thunderstorms likely. Lows 67 to 73. Chance of precipitation 60%.
POP = Probability of Precipitation
Summit Motorway 39a Radar Loop
Use the map search tool if you want to place a location marker on the radar map...