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Sierra Vista, Arizona 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Sierra Vista AZ
National Weather Service Forecast for: Sierra Vista AZ
Issued by: National Weather Service Tucson, AZ
Updated: 4:17 am MST Jul 10, 2025
 
Today

Today: A 30 percent chance of showers and thunderstorms, mainly after 2pm.  Increasing clouds, with a high near 100. Northwest wind 6 to 14 mph, with gusts as high as 24 mph.
Chance
T-storms
Tonight

Tonight: A 40 percent chance of showers and thunderstorms before 11pm.  Mostly cloudy, then gradually becoming clear, with a low around 73. Northwest wind 9 to 13 mph becoming west southwest in the evening. Winds could gust as high as 22 mph.
Chance
T-storms then
Mostly Clear
Friday

Friday: A 40 percent chance of showers and thunderstorms after 11am.  Sunny through mid morning, then becoming partly sunny, with a high near 96. South southwest wind 6 to 14 mph becoming west northwest in the morning. Winds could gust as high as 24 mph.
Chance
T-storms
Friday
Night
Friday Night: A 40 percent chance of showers and thunderstorms before 11pm.  Mostly cloudy, then gradually becoming clear, with a low around 71. Southwest wind 8 to 14 mph, with gusts as high as 23 mph.
Chance
T-storms then
Mostly Clear
Saturday

Saturday: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Mostly sunny, with a high near 96. West northwest wind 6 to 13 mph.
Chance
T-storms
Saturday
Night
Saturday Night: A 30 percent chance of showers and thunderstorms before 11pm.  Partly cloudy, with a low around 72.
Chance
T-storms then
Mostly Clear
Sunday

Sunday: Showers and thunderstorms likely after 11am.  Mostly sunny, with a high near 96. Chance of precipitation is 60%.
T-storms
Likely
Sunday
Night
Sunday Night: Showers and thunderstorms likely before 11pm.  Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
T-storms
Likely then
Partly Cloudy
Monday

Monday: Showers and thunderstorms likely after 11am.  Partly sunny, with a high near 94. Chance of precipitation is 70%.
T-storms
Likely
Hi 100 °F Lo 73 °F Hi 96 °F Lo 71 °F Hi 96 °F Lo 72 °F Hi 96 °F Lo 70 °F Hi 94 °F

 

Today
 
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Increasing clouds, with a high near 100. Northwest wind 6 to 14 mph, with gusts as high as 24 mph.
Tonight
 
A 40 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, then gradually becoming clear, with a low around 73. Northwest wind 9 to 13 mph becoming west southwest in the evening. Winds could gust as high as 22 mph.
Friday
 
A 40 percent chance of showers and thunderstorms after 11am. Sunny through mid morning, then becoming partly sunny, with a high near 96. South southwest wind 6 to 14 mph becoming west northwest in the morning. Winds could gust as high as 24 mph.
Friday Night
 
A 40 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, then gradually becoming clear, with a low around 71. Southwest wind 8 to 14 mph, with gusts as high as 23 mph.
Saturday
 
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 96. West northwest wind 6 to 13 mph.
Saturday Night
 
A 30 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 72.
Sunday
 
Showers and thunderstorms likely after 11am. Mostly sunny, with a high near 96. Chance of precipitation is 60%.
Sunday Night
 
Showers and thunderstorms likely before 11pm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Monday
 
Showers and thunderstorms likely after 11am. Partly sunny, with a high near 94. Chance of precipitation is 70%.
Monday Night
 
Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Tuesday
 
Showers and thunderstorms likely. Partly sunny, with a high near 92. Chance of precipitation is 70%.
Tuesday Night
 
Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 70%.
Wednesday
 
Showers and thunderstorms likely. Partly sunny, with a high near 91. Chance of precipitation is 70%.

 

Forecast from NOAA-NWS for Sierra Vista AZ.

Weather Forecast Discussion
423
FXUS65 KTWC 100950
AFDTWC

Area Forecast Discussion
National Weather Service Tucson AZ
250 AM MST Thu Jul 10 2025

.SYNOPSIS...

Temps remain in the triple digits across the lower desert today,
with isolated thunderstorm chances mainly confined to the
International Border this afternoon and evening.

&&

.KEY MESSAGES...

- "Low-grade" monsoon pattern for the next several days. Storms
  and showers that develop will generally be east and south of
  Tucson.

- Decreasing temperature trend beginning today for the next 7 to
  10 days. Near normal temperatures by early next week. Minor to
  localized Moderate HeatRisk.

- Monsoon pattern ramps up again early next week.

&&

.DISCUSSION...

Desert SW remains under the influence of an upper level ridge of
high pressure, keeping temperatures slightly above normal for the
next few days. While the HeatRisk will be in the Minor to Moderate
Categories at most locales today, please continue to be cautious
and hydrate frequently if you are planning to be outdoors.

This will perpetuate our low grade monsoon pattern the next few
days and into the weekend, confining any isolated thunderstorm
activity to the International Border the next few afternoons and
evenings. With limited moisture available at the mid-levels and
the large scale wind pattern out of the N/NW, we likely won`t see
much in the way of widespread monsoonal activity for another
several days.

By Friday, the ridge will begin to retrograde westward over CA,
helping to moderate daytime high temperatures back toward normal,
before a more favorable monsoon pattern starts to take shape
early next week.

&&

.AVIATION...Valid through 11/12Z.

West/Northwesterly surface winds will dominate all terminals
through the forecast period, with an occasional gust at or around
15 mph due to daily diurnal trends. An isolated TS is possible
later this afternoon near KDUG, which may bring some gusty and
erratic winds. Skies should remain clear for the most of the
period with occasional FEW/BKN at or above 10k ft.

&&

.FIRE WEATHER...

Thunderstorm activity today will likely be confined to Southern
AZ along the International Border. Otherwise, isolated to low-
end scattered thunderstorm coverage is expected to the south and
east of Tucson into the weekend. The main threat for storms will
be the potential for strong gusty and erratic outflow winds 40-45
mph. Otherwise, an uptick in monsoon activity is possible later
this weekend and into next week as the upper high shifts to a more
favorable location aloft. Temperatures will remain above normal
this week, and back to near normal by early next week. Winds will
remain generally light and under 15 mph with the exception of
stronger winds in the Gila River Valley today and tomorrow with
northwest sustained winds around 15 to 20 MPH gusts to 30 MPH.

&&

.TWC WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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