Santa Cruz River near Tubac
15 mi- Level
- 20.9 ft
- Flow
- 5 cfs
Forecast peak 20.8 ft Sat 7 AM
Reading from Sat 5:45 AM · NWS gauge page
Model estimate for 7:00 AM MST (no recent station report)
Arivaca, AZ weather
Sunny and 49°9°.
Today: low 46°8° (likely 46°8° to 54°12°), high 73°23° (likely 70°21° to 73°23°).
Now 49°9°
Sunny
- Wind
- 5 mph8 km/h
- From the south. Gusts to 22 mph35 km/h around 1 PM
- Dew point
- 43°6°
- Comfortable
- UV index
- 0Low
- High 12–2 PM · peak 6
- Air quality
- 32Good
- PM2.5 (fine particles) · tomorrow moderate
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
Good hours for
This morningUp to 70°21° by 11 AM · Clear
This afternoonNear 72°22° · Clear
TonightDown to 48°9° by 5 AM · Clear
Tomorrow morningUp to 72°22° by 11 AM · Clear
Tomorrow afternoonNear 74°23° · Partly cloudy
Tomorrow nightDown to 48°9° by 4 AM · Partly cloudy
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 7a | Sunny | 49°9° (likely 47°8° to 55°13°) | 47°8° | 0% | 5 mph8 km/h from S, gusts 5 mph8 km/h | 79% | 6% | 0 |
| Sat 8a | Sunny | 56°13° (likely 54°12° to 59°15°) | 56°13° | 0% | 6 mph10 km/h from S, gusts 7 mph12 km/h | 63% | 3% | 0 |
| Sat 9a | Sunny | 63°17° (likely 62°17° to 63°17°) | 63°17° | 0% | 7 mph11 km/h from SSW, gusts 10 mph15 km/h | 48% | 1% | 2 |
| Sat 10a | Sunny | 66°19° (likely 65°18° to 66°19°) | 66°19° | 0% | 9 mph14 km/h from SSW, gusts 13 mph21 km/h | 44% | 3% | 3 |
| Sat 11a | Sunny | 70°21° (likely 67°19° to 70°21°) | 70°21° | 0% | 10 mph16 km/h from SSW, gusts 16 mph25 km/h | 37% | 6% | 5 |
| Sat 12p | Sunny | 72°22° (likely 69°21° to 72°22°) | 72°22° | 0% | 10 mph16 km/h from SSW, gusts 18 mph29 km/h | 35% | 9% | 6 |
| Sat 1p | Sunny | 72°22° (likely 70°21° to 72°22°) | 72°22° | 0% | 12 mph19 km/h from SW, gusts 22 mph35 km/h | 33% | 17% | 6 |
| Sat 2p | Sunny | 73°23° (likely 70°21° to 73°23°) | 73°23° | 0% | 12 mph19 km/h from SW, gusts 21 mph34 km/h | 32% | 16% | 5 |
| Sat 3p | Mostly sunny | 72°22° (likely 70°21° to 72°22°) | 73°23° | 0% | 12 mph19 km/h from SW, gusts 20 mph32 km/h | 32% | 16% | 3 |
| Sat 4p | Sunny | 73°23° (likely 68°20° to 73°23°) | 73°23° | 0% | 12 mph19 km/h from WSW, gusts 16 mph26 km/h | 32% | 22% | 1 |
| Sat 5p | Mostly sunny | 71°22° (likely 66°19° to 71°22°) | 71°22° | 0% | 9 mph14 km/h from WSW, gusts 15 mph24 km/h | 35% | 20% | 1 |
| Sat 6p | Mostly clear | 65°18° (likely 62°17° to 65°18°) | 65°18° | 0% | 6 mph10 km/h from WSW, gusts 12 mph19 km/h | 41% | 14% | 0 |
| Sat 7p | Mostly clear | 63°17° (likely 58°14° to 63°17°) | 63°17° | 0% | 3 mph5 km/h from WSW, gusts 10 mph16 km/h | 45% | 13% | 0 |
| Sat 8p | Clear | 60°16° (likely 55°13° to 61°16°) | 60°16° | 0% | 2 mph3 km/h from WSW, gusts 6 mph10 km/h | 52% | 8% | 0 |
| Sat 9p | Clear | 58°14° (likely 54°12° to 60°16°) | 58°14° | 0% | 2 mph3 km/h from SW, gusts 3 mph5 km/h | 56% | 9% | 0 |
| Sat 10p | Clear | 56°13° (likely 53°12° to 59°15°) | 56°13° | 0% | 1 mph2 km/h from S, gusts 3 mph4 km/h | 61% | 9% | 0 |
| Sat 11p | Clear | 55°13° (likely 51°11° to 58°14°) | 55°13° | 0% | 1 mph2 km/h from ESE, gusts 3 mph5 km/h | 66% | 14% | 0 |
| Sun 12a | Clear | 54°12° (likely 50°10° to 57°14°) | 54°12° | 0% | 1 mph2 km/h from ESE, gusts 4 mph7 km/h | 68% | 8% | 0 |
| Sun 1a | Clear | 52°11° (likely 50°10° to 56°13°) | 52°11° | 0% | 1 mph2 km/h from E, gusts 3 mph6 km/h | 72% | 10% | 0 |
| Sun 2a | Clear | 51°11° (likely 49°9° to 55°13°) | 51°11° | 0% | 1 mph2 km/h from E, gusts 2 mph3 km/h | 74% | 15% | 0 |
| Sun 3a | Clear | 49°9° (likely 48°9° to 55°13°) | 49°9° | 0% | 1 mph2 km/h from ESE, gusts 3 mph5 km/h | 77% | 18% | 0 |
| Sun 4a | Clear | 49°9° (likely 47°8° to 54°12°) | 49°9° | 0% | 2 mph3 km/h from E, gusts 3 mph5 km/h | 76% | 11% | 0 |
| Sun 5a | Clear | 48°9° (likely 47°8° to 54°12°) | 48°9° | 0% | 2 mph3 km/h from E, gusts 4 mph6 km/h | 78% | 8% | 0 |
| Sun 6a | Clear | 47°8° (likely 46°8° to 55°13°) | 47°8° | 0% | 2 mph3 km/h from ESE, gusts 3 mph5 km/h | 81% | 10% | 0 |
| Sun 7a | Sunny | 49°9° (likely 46°8° to 55°13°) | 49°9° | 0% | 2 mph3 km/h from ESE, gusts 3 mph5 km/h | 75% | 4% | 0 |
| Sun 8a | Sunny | 56°13° (likely 52°11° to 59°15°) | 56°13° | 0% | 3 mph5 km/h from E, gusts 3 mph5 km/h | 61% | 0% | 1 |
| Sun 9a | Sunny | 64°18° (likely 60°16° to 64°18°) | 64°18° | 0% | 3 mph5 km/h from E, gusts 7 mph11 km/h | 45% | 0% | 2 |
| Sun 10a | Sunny | 67°19° (likely 66°19° to 67°19°) | 67°19° | 0% | 5 mph8 km/h from ENE, gusts 6 mph9 km/h | 40% | 1% | 4 |
| Sun 11a | Sunny | 72°22° (likely 68°20° to 72°22°) | 72°22° | 0% | 3 mph5 km/h from ENE, gusts 5 mph7 km/h | 33% | 5% | 5 |
| Sun 12p | Sunny | 74°23° (likely 70°21° to 74°23°) | 74°23° | 0% | 3 mph5 km/h from NNE, gusts 5 mph7 km/h | 30% | 3% | 6 |
| Sun 1p | Mostly sunny | 75°24° (likely 72°22° to 75°24°) | 75°24° | 0% | 5 mph8 km/h from N, gusts 4 mph6 km/h | 27% | 33% | 6 |
| Sun 2p | Mostly sunny | 76°24° (likely 72°22° to 76°24°) | 76°24° | 0% | 5 mph8 km/h from N, gusts 4 mph6 km/h | 25% | 43% | 5 |
| Sun 3p | Mostly sunny | 76°24° (likely 73°23° to 76°24°) | 76°24° | 0% | 6 mph10 km/h from N, gusts 5 mph8 km/h | 24% | 46% | 4 |
| Sun 4p | Mostly sunny | 76°24° (likely 72°22° to 76°24°) | 76°24° | 0% | 6 mph10 km/h from N, gusts 8 mph12 km/h | 24% | 49% | 3 |
| Sun 5p | Mostly sunny | 74°23° (likely 70°21° to 74°23°) | 74°23° | 0% | 6 mph10 km/h from N, gusts 9 mph15 km/h | 27% | 49% | 1 |
| Sun 6p | Partly cloudy | 70°21° (likely 64°18° to 70°21°) | 70°21° | 0% | 6 mph10 km/h from N, gusts 13 mph21 km/h | 31% | 51% | 0 |
| Sun 7p | Clear | 66°19° (likely 60°16° to 66°19°) | 66°19° | 0% | 6 mph10 km/h from NNE, gusts 12 mph19 km/h | 37% | 44% | 0 |
| Sun 8p | Mostly clear | 62°17° (likely 58°14° to 64°18°) | 62°17° | 0% | 6 mph10 km/h from NNE, gusts 11 mph18 km/h | 44% | 24% | 0 |
| Sun 9p | Clear | 60°16° (likely 55°13° to 62°17°) | 60°16° | 0% | 6 mph10 km/h from NNE, gusts 6 mph10 km/h | 50% | 8% | 0 |
| Sun 10p | Clear | 58°14° (likely 53°12° to 61°16°) | 58°14° | 0% | 5 mph8 km/h from NE, gusts 4 mph6 km/h | 55% | 9% | 0 |
| Sun 11p | Clear | 56°13° (likely 52°11° to 59°15°) | 56°13° | 0% | 5 mph8 km/h from NE, gusts 3 mph4 km/h | 59% | 26% | 0 |
| Mon 12a | Partly cloudy | 54°12° (likely 51°11° to 59°15°) | 54°12° | 0% | 3 mph5 km/h from NE, gusts 3 mph4 km/h | 63% | 66% | 0 |
| Mon 1a | Partly cloudy | 53°12° (likely 50°10° to 58°14°) | 53°12° | 0% | 3 mph5 km/h from ENE, gusts 3 mph4 km/h | 67% | 62% | 0 |
| Mon 2a | Partly cloudy | 51°11° (likely 49°9° to 57°14°) | 51°11° | 0% | 2 mph3 km/h from ENE, gusts 4 mph6 km/h | 69% | 62% | 0 |
| Mon 3a | Cloudy | 50°10° (likely 48°9° to 56°13°) | 50°10° | 0% | 2 mph3 km/h from E, gusts 4 mph6 km/h | 72% | 72% | 0 |
| Mon 4a | Cloudy | 48°9° (likely 47°8° to 56°13°) | 49°9° | 0% | 2 mph3 km/h from E, gusts 4 mph6 km/h | 73% | 68% | 0 |
| Mon 5a | Partly cloudy | 49°9° (likely 47°8° to 55°13°) | 49°9° | 0% | 2 mph3 km/h from E, gusts 4 mph7 km/h | 71% | 64% | 0 |
| Mon 6a | Mostly clear | 50°10° (likely 45°7° to 56°13°) | 50°10° | 0% | 3 mph5 km/h from E, gusts 5 mph8 km/h | 67% | 36% | 0 |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Mostly sunny. High 73°23°, low 46°8°. Typical 79°26° / 45°7°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 56°13°Dry
Afternoon
noon–6 PM
Mostly sunny, 73°23°Dry
Evening
6 PM–midnight
Clear, 60°16°Dry
Overnight
midnight–6 AM
Clear, 48°9°Dry
Official NWS forecast
Today: Sunny, with a high near 73. South southwest wind 5 to 12 mph, with gusts as high as 21 mph.
Tonight: Mostly clear, with a low around 46. Southeast wind 1 to 6 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 70°21°–73°23°
- Low, likely
- 46°8°–54°12°
- Typical high / low
- 79°26° / 45°7°
- Wind
- 15 mph24 km/h, gusts 26 mph42 km/h
- UV peak
- 6
Tomorrow, Oct 25. Mostly sunny. High 76°24°, low 48°9°. Typical 79°26° / 45°7°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 56°13°Dry
Afternoon
noon–6 PM
Mostly sunny, 76°24°Dry
Evening
6 PM–midnight
Clear, 62°17°Dry
Overnight
midnight–6 AM
Cloudy, 48°9°Dry
Official NWS forecast
Day: Sunny, with a high near 76. Northeast wind 2 to 6 mph.
Night: Partly cloudy, with a low around 48. Northeast wind 2 to 6 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 73°23°–76°24°
- Low, likely
- 46°8°–53°12°
- Typical high / low
- 79°26° / 45°7°
- Wind
- 10 mph15 km/h, gusts 17 mph28 km/h
- UV peak
- 6
Monday, Oct 26. Mostly sunny. High 80°27°, low 51°11°. Typical 78°26° / 44°7°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 57°14°Dry
Afternoon
noon–6 PM
Sunny, 78°25°Dry
Evening
6 PM–midnight
Clear, 63°17°Dry
Overnight
midnight–6 AM
Clear, 54°12°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 80. South wind around 6 mph.
Night: Clear, with a low around 51.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 77°25°–80°27°
- Low, likely
- 47°8°–54°12°
- Typical high / low
- 78°26° / 44°7°
- Wind
- 9 mph15 km/h, gusts 17 mph27 km/h
- UV peak
- 6
Tuesday, Oct 27. Sunny. High 81°27°, low 54°12°. Typical 78°26° / 44°7°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 61°16°Dry
Afternoon
noon–6 PM
Sunny, 78°25°Dry
Evening
6 PM–midnight
Clear, 62°17°Dry
Overnight
midnight–6 AM
Clear, 54°12°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 81.
Night: Partly cloudy, with a low around 54.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 75°24°–81°27°
- Low, likely
- 50°10°–56°13°
- Typical high / low
- 78°26° / 44°7°
- Wind
- 12 mph19 km/h, gusts 18 mph29 km/h
- UV peak
- 6
Wednesday, Oct 28. Cloudy. High 81°27°, low 55°13°. Typical 78°26° / 44°7°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 60°16°Dry
Afternoon
noon–6 PM
Cloudy, 78°25°Dry
Evening
6 PM–midnight
Cloudy, 63°17°Dry
Overnight
midnight–6 AM
Cloudy, 56°13°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 81.
Night: Mostly cloudy, with a low around 55.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 76°24°–81°27°
- Low, likely
- 48°9°–59°15°
- Typical high / low
- 78°26° / 44°7°
- Wind
- 15 mph24 km/h, gusts 20 mph33 km/h
- UV peak
- 5
Thursday, Oct 29. Showers. High 78°26°, low 55°13°. Typical 78°26° / 44°7°. Rain 0.01 in0.3 mm, 30% chance. Mostly agree.
Morning
6 AM–noon
Cloudy, 61°16°Dry
Afternoon
noon–6 PM
Cloudy, 77°25°Dry
Evening
6 PM–midnight
Cloudy, 65°18°Dry
Overnight
midnight–6 AM
Cloudy, 57°14°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers after 11am. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Night: A chance of rain showers. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 75°24°–78°26°
- Low, likely
- 51°11°–59°15°
- Typical high / low
- 78°26° / 44°7°
- Wind
- 16 mph26 km/h, gusts 24 mph38 km/h
- UV peak
- 4
Friday, Oct 30. Showers. High 73°23°, low 52°11°. Typical 77°25° / 43°6°. Rain 0.23 in5.8 mm, 40% chance. Mostly agree.
Morning
6 AM–noon
Cloudy, 61°16°30% chance · 0.05 in1.1 mm
Afternoon
noon–6 PM
Drizzle, 70°21°40% chance · 0.13 in3.2 mm
Evening
6 PM–midnight
Drizzle, 59°15°30% chance · 0.04 in1.1 mm
Overnight
midnight–6 AM
Drizzle, 56°14°20% chance · 0.02 in0.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers. Partly sunny, with a high near 73. Chance of precipitation is 40%.
Night: A chance of rain showers. Mostly cloudy, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 67°19°–73°23°
- Low, likely
- 52°11°–58°14°
- Typical high / low
- 77°25° / 43°6°
- Wind
- 20 mph32 km/h, gusts 38 mph62 km/h
- UV peak
- 5
Saturday, Oct 31. Drizzle. High 65°18°, low 55°13°. Typical 77°25° / 43°6°. Rain 0.12 in3 mm, 40% chance. Mostly agree.
Morning
6 AM–noon
Drizzle, 57°14°30% chance · 0.02 in0.5 mm
Afternoon
noon–6 PM
Partly sunny, 65°18°30% chance · 0.03 in0.8 mm
Evening
6 PM–midnight
Cloudy, 58°15°40% chance
Overnight
midnight–6 AM
Cloudy, 56°13°40% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 62°17°–68°20°
- Low, likely
- 52°11°–56°13°
- Typical high / low
- 77°25° / 43°6°
- Wind
- 16 mph26 km/h, gusts 34 mph55 km/h
- UV peak
- 6
Sunday, Nov 1. Cloudy. High 64°18°, low 54°12°. Typical 77°25° / 43°6°. Rain 0.21 in5.3 mm, 50% chance. Forecasts differ.
Morning
6 AM–noon
Cloudy, 58°14°50% chance · 0.05 in1.4 mm
Afternoon
noon–6 PM
Cloudy, 65°18°40% chance · 0.05 in1.2 mm
Evening
6 PM–midnight
Cloudy, 58°15°40% chance · 0.16 in4 mm
Overnight
midnight–6 AM
Partly cloudy, 53°12°30% chance · 0.03 in0.8 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 58°14°–73°23°
- Low, likely
- 49°9°–60°16°
- Typical high / low
- 77°25° / 43°6°
- Wind
- 16 mph26 km/h, gusts 31 mph50 km/h
- UV peak
- 4
Monday, Nov 2. Cloudy. High 71°22°, low 55°13°. Typical 76°24° / 42°6°. Rain 0.16 in4.1 mm, 30% chance. Forecasts differ.
Morning
6 AM–noon
Partly sunny, 56°13°20% chance
Afternoon
noon–6 PM
Sunny, 72°22°Dry
Evening
6 PM–midnight
Clear, 65°18°Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 63°17°–84°29°
- Low, likely
- 50°10°–61°16°
- Typical high / low
- 76°24° / 42°6°
- Wind
- 12 mph19 km/h, gusts 28 mph45 km/h
- UV peak
- 6
The outlook
Today
Dry, high 73°, low 46°.
Tomorrow
Dry, high 76°, low 48°, warming up.
Monday
Dry, high 80°, low 51°, warming up.
Rest of week
Mostly dry, highs 64–81°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (TWC) (opens in a new tab)
What changed since yesterday
No meaningful changes from yesterday’s forecast.
Radar
Radar data: NOAA MRMS, rendered by forecast.blue
Radar loads when scrolled into view
Rivers
NOAA river gauges within 25 mi
Below flood stage
Altar Wash near Three Points
19 mi- Level
- 1.7 ft
Forecast peak 1.8 ft Sat 7 AM
Reading from Sat 5:45 AM · NWS gauge page
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
About 54% less heating than a typical week.
This week 13Typical 27
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 1
- h below 17°F
- 0
- h below 5°F
- 0
47, 17 and 5°F are the test points heat pumps are rated at.
Comfort
Dry air outside (dew point 43°F).
Open the windows?
Today, 9:00 AM–8:00 PM
Good stretch to open the windows.
Is this typical?
Tumacacori Nm · official normals 1991–2020 · records 1946–2026
Oct 24, today vs a typical year
Today’s expected high is 6°3° colder than typical.
- Normal high / low
- 79°26° / 45°7°
- Forecast high / low
- 73°23° / 46°8°
- Record high
- 95°35° in 1968
- Record low
- 27°−3° in 1997
Last 7 days vs normal
- —SunOct 18
- —MonOct 19
- —TueOct 20
- —WedOct 21
- —ThuOct 22
- —FriOct 23
- —SatOct 24
Arivaca weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 6:35 AM, sunset 5:43 PM.
- Daylight
- 11 h 8 min
- Losing 1 min 48 s a day; shortest Dec 21, 1 h 3 min less
- Golden hour
- 5:09–5:58 PM
- Morning 6:19–7:08 AM
- Blue hour
- 5:58–6:08 PM
- Morning 6:10–6:19 AM; first light 6:10 AM
Stars tonight? Fair
Mostly clear 6:08 PM–6:10 AM, but the moon is 99% lit and up.
Moon
Waxing gibbous
97% lit · growing
- Today
- sets 4:57 AM · rises 4:40 PM
- Full moon
- Oct 25
- New moon
- Nov 9
