Organ Pipe Cactus National Monument, AZ

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Campsite at Organ Pipe National Monument

Today’s Forecast:

🌤
94°F
High: 94° | Low: 76°
Current Temperature
Station: OPCA3
Observed at: 8:00 pm CDT on 9/26/26
Wind: 2 mph | Humidity: 15%
⚠️
Flood Watch
Flood Watch issued September 26 at 1:17PM MST until September 29 at 11:00PM MST by NWS Tucson AZ (Expires: September 30, 2026 1:00 am)
Show Alert Details & Instructions
Description: * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...For all of southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Eastern Cochise County below 5000 feet, Galiuro and Pinaleno Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, Western Pima County and White Mountains of Graham and Greenlee Counties. * WHEN...From late Monday morning through Tuesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Deep tropical moisture will combine with an approaching upper low and trough, resulting in areas of heavy rainfall. Rainfall totals of 1 to 2 inches are possible across most of southeast Arizona, with locally heavier amounts under the stronger thunderstorms. - http://www.weather.gov/safety/flood Instructions: You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Tonight:Mostly cloudy, with a low around 76. Wind around 0 mph.
Sunday:A slight chance of rain showers between 11am and 5pm, then a slight chance of showers and thunderstorms. Partly sunny. High near 96, with temperatures falling to around 90 in the afternoon. West wind 0 to 5 mph. Chance of precipitation is 20%.
Sunday Night:A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. North northeast wind 1 to 5 mph. Chance of precipitation is 40%.

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Today’s Report:

🥾 Hiking

  6 /100

Not Recommended for hiking. High near 94°F. Low rain risk (19%). Slight chance of thunderstorms in the evening. Temperatures outside comfort limits (94°F).

  • Temp: Unfavorable weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Marginal weather factor
  • Alert: Unfavorable weather factor
⚠️ Active weather alerts affect this activity!
Tomorrow's Outlook:
Not Recommended 14/100
Not Recommended for hiking. High near 90°F. Risk of rain (43%). Light wind (6 mph). Slight chance of thunderstorms.

⛺ Camping

  19 /100

Not Recommended for camping. High near 94°F. Low rain risk (19%). Slight chance of thunderstorms.

  • Temp: Marginal weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Marginal weather factor
  • Alert: Unfavorable weather factor
⚠️ Active weather alerts affect this activity!
Tomorrow's Outlook:
Not Recommended 16/100
Not Recommended for camping. High near 90°F. Risk of rain (43%). Light wind (6 mph). Slight chance of thunderstorms.

🎪 Outdoor Events / Activities

  6 /100

Not Recommended for outdoor events / activities. High near 94°F. Low rain risk (19%). Slight chance of thunderstorms in the evening. Temperatures outside comfort limits (94°F).

  • Temp: Unfavorable weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Marginal weather factor
  • Alert: Unfavorable weather factor
⚠️ Active weather alerts affect this activity!
Tomorrow's Outlook:
Not Recommended 11/100
Not Recommended for outdoor events / activities. High near 90°F. Risk of rain (43%). Light wind (6 mph). Slight chance of thunderstorms.

About Organ Pipe Cactus National Monument

Organ Pipe Cactus National Monument is a remote Sonoran Desert planning page for scenic drives, desert hikes, campground nights, stargazing, cactus landscapes, and long-distance travel near Ajo and Why.

Make the Most of a Organ Pipe Cactus National Monument Day

Plan conservatively around heat, daylight, fuel, water, and storm timing. Distances are long, shade is limited, and a simple scenic drive can become more serious in extreme weather.

Weather Tips for the Area

  • Extreme heat, strong sun, limited shade, remote roads, lightning, flash flooding in washes, dust, and cold desert nights can all affect plans.
  • In warm seasons, start early, shorten exposed routes, and carry more water than a casual city forecast might suggest.
  • For campground days, check overnight lows, fire restrictions, storm timing, and how quickly shelter is available.
  • Never treat dry washes or canyon bottoms as safe during nearby storms because runoff can arrive from miles away.

Nearby Towns and Areas

This page is meant to cover a roughly 25-mile outdoor-planning area around Organ Pipe Cactus National Monument, including Ajo, Why, the monument visitor and campground area, Ajo Mountain Drive, and nearby Sonoran Desert scenic routes. It can also be useful when planning outdoor time near:

  • Ajo
  • Why
  • Ajo Mountain Drive
  • Twin Peaks Campground
  • Puerto Blanco Drive area
  • Quitobaquito area
  • Sonoran Desert scenic routes
  • Cabeza Prieta approaches

Plan Around the Conditions

Use the forecast to choose the best version of Organ Pipe Cactus National Monument rather than forcing one itinerary. Match heat, sun exposure, wind, storm timing, water conditions, trail surfaces, fire restrictions, elevation, and road conditions to the activity that gives your group the most comfortable day.

7-Day Forecast for Organ Pipe Cactus National Monument

🌤
94°F
High: 94° | Low: 76°
Current Temperature
Station: OPCA3
Observed at: 8:00 pm CDT on 9/26/26
Wind: 2 mph | Humidity: 15%
Sun ⛈
96° 74°
19%
Mon 🌧
92° 69°
43%
Tue ⛈
87° 66°
57%
Wed ☀
89° 68°
1%
Thu ☀
96° 71°
0%
Fri ☀
98° 72°
0%
Sat ☀
99° --°
1%

7-Day High Temperature Trend

96° Sun 92° Mon 87° Tue 89° Wed 96° Thu 98° Fri 99° Sat

7-Day Low Temperature Trend

74° Sun 69° Mon 66° Tue 68° Wed 71° Thu 72° Fri 50° Sat

📊 7-Day Outdoor Outlook

Good Fair Poor 7 Sun 4 Mon 4 Tue 6 Wed 8 Thu 7 Fri 7 Sat
Forecast data from the National Weather Service  |  Last Updated: September 26, 2026 9:41 pm CDT