September on the Arizona Trail brings lingering monsoon influence in the south, with warm to hot days, mid-teen nights, and frequent clouds with periodic showers. Central elevations see warm afternoons and cool nights under variable skies, punctuated by scattered downpours. Farther north and higher, daytime temperatures drop to mild or cool, nights turn cold, and fast-moving systems can deliver brief heavy rain and, at the highest plateaus, early snowfall. Sunshine remains common between systems, but day-to-day variability is notable along the entire route.
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At the Mexico Border, days reach 22–32°C while nights hold near 15–19°C under a mix of overcast, partial sun, and clear spells. Showers are frequent with multiple light to moderate rain events, and daily totals occasionally reach about 14 mm.
At Parker Canyon Lake, highs run 23–32°C with lows 14–20°C amid variable cloud cover. Rain is occasional and generally light, up to 7 mm.
At Canelo Pass, temperatures range from 25–33°C by day and 14–21°C at night. A blend of clear periods and showers appears, with heavier bursts up to 10 mm.
In Casa Blanca Canyon, highs span 25–36°C and lows 15–23°C with many clear to partly cloudy hours. Rain is intermittent and light, peaking near 4 mm.
At Apache Springs, expect 25–32°C afternoons and 15–21°C nights. Conditions alternate between sunshine and showery spells, with daily totals up to 9 mm.
At Oak Tree Canyon, highs reach 27–35°C with lows 16–21°C under variable cloud. Episodic rain can add up to 9 mm.
Along Lakes Road, temperatures vary from 20–36°C with lows 18–24°C as skies swing from sunny to overcast. One very wet episode can deliver about 38 mm.
At the Gabe Zimmerman Trailhead, highs are 26–36°C and lows 19–24°C with sun-cloud mixes. Periodic showers occur, bringing up to 10 mm.
In Saguaro National Park, days run 24–39°C and nights 18–25°C, with intervals of sunshine and overcast. Heavy rain bursts can deliver up to 35 mm.
On Redington Road, highs are 24–38°C with lows 14–26°C under partly cloudy to clear skies. Showery spells are brief, with daily rainfall near 7 mm at most.
At Gordon Hirabayashi Campground, highs reach 25–33°C and lows 12–22°C with generally fair conditions. Scattered drizzle or light rain totals up to 4 mm.
In Marshall Gulch, days are 19–26°C and nights 10–16°C with frequent cloud cover and recurring showers. Rainfall can total around 11 mm.
At American Flag Ranch, highs span 24–33°C and lows 16–23°C as sun alternates with overcast. An intense event can produce about 47 mm.
Around Tiger Mine, highs are 26–35°C with lows 16–22°C and mostly clear to partly cloudy skies. Occasional light to moderate rain reaches up to 9 mm.
At Freeman Road, highs run 26–35°C with lows 15–23°C and many clear periods. Brief showers occur, with wettest cases near 8 mm.
At the Kelvin-Riverside Bridge, expect 31–40°C days and 17–27°C nights with predominantly sunny, hot weather. A stronger system can drop around 22 mm.
Across Tonto National Forest, highs range 24–36°C and lows 15–24°C with variable cloudiness. Occasional downpours reach roughly 13 mm.
At Picketpost Trailhead, highs are 29–39°C with lows 18–26°C under largely clear skies. Rainfall is negligible.
At Rogers Trough, highs span 23–33°C and lows 13–20°C with alternating clear and overcast periods. A few showers bring up to 7 mm.
At Vineyard Trailhead, highs run 31–37°C with lows 17–24°C and plenty of sun. Light rain is uncommon and tops out near 4 mm.
At Pigeon Spring, highs are 20–30°C and lows 9–17°C under mixed sun and cloud. Several showery intervals can reach about 9 mm.
Around Sunflower, highs vary 24–35°C with lows 14–23°C amid changeable skies. The heaviest bursts reach roughly 38 mm.
At Mount Peeley, highs run 18–30°C and lows 6–17°C with cool nights and a blend of sunshine and clouds. Occasional heavy rain spikes up to 36 mm.
At Red Hills Trail Junction, highs are 19–31°C and lows 5–15°C with mostly fair weather and intermittent cloud. Any showers are light, near 1 mm.
Along the East Verde River, highs reach 26–38°C with lows 11–21°C. Sunshine and dry weather dominate, with only stray light showers around 1 mm.
At the Pine Trailhead, highs range 17–30°C and lows 9–17°C under variable skies. A couple of strong storms can deliver up to 22 mm.
At the FR 300 Trailhead, highs are 14–29°C with lows 6–14°C amid periods of overcast and rain mixed with clearer breaks. Wettest days approach 20 mm.
Near Highway 87, highs span 17–29°C and lows 5–16°C with alternating clear, overcast, and showery spells. Daily rainfall can reach around 5 mm.
At Gooseberry Springs, highs are 13–27°C and lows 5–15°C with frequent cloud changes and several rain days. Totals peak near 9 mm.
At Mayflower Spring, highs run 13–28°C with lows 5–16°C. Sunshine alternates with light rain or drizzle, up to about 3 mm.
Around Marshall Lake, highs are 14–28°C and lows 3–15°C with generally clear to partly cloudy conditions. Occasional light precipitation tops out near 4 mm.
At the Cosnino Road Exit, highs span 16–29°C and lows 5–16°C with fair stretches and a couple of wetter intervals. The rainiest days bring up to 12 mm.
At Schultz Pass, highs are 15–25°C and lows 2–12°C with cool nights and mixed sun and cloud. Showers are sporadic, up to 8 mm.
At Cedar Ranch, highs run 13–29°C and lows 3–14°C with mostly dry weather, plenty of sun, and occasional drizzle. Rainfall seldom exceeds 2 mm.
At Moqui Stage Station, highs are 14–28°C and lows 2–18°C as sunny periods alternate with overcast and some rain. The wettest events reach about 12 mm.
At Grandview Lookout Tower, highs vary 6–24°C with lows 0–12°C, swinging between sunny, mild days and cool, showery periods. Stronger systems can drop up to 22 mm.
On the South Kaibab, highs are 7–26°C and lows 1–13°C with variable cloud cover and mainly light precipitation. Daily totals top out near 4 mm.
Across the North Kaibab, highs range 4–21°C and lows -2–12°C with cool days, cold nights, and periods of overcast. A few systems bring cold rain and occasional snowfall, with totals up to 11 mm.
In Kaibab National Forest, highs run 6–17°C and lows -5–8°C with many overcast days interspersed with clear spells. Precipitation is generally light, up to 2 mm.
At Telephone Hill, highs are 3–19°C and lows -4–8°C; unsettled stretches include cold rain or light snow under overcast skies. Precipitation peaks around 9 mm.
Near Orderville, highs span 8–24°C and lows -2–10°C with long sunny intervals contrasting a notably wet day. The wettest case brings about 14 mm.
At Winter Road, highs are 5–25°C and lows -1–12°C with mostly fair weather punctuated by a soaking rain and a separate snow event. Daily totals reach roughly 12 mm for rain and 10 mm for snow.
At the Stateline Trailhead, highs range 10–28°C and lows 1–14°C under predominantly dry, clear to partly cloudy skies. Only the lightest drizzle appears, otherwise no measurable rain.
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