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Mountain View, California Weather

Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →

Mountain View weather forecast — hour by hour, 7-day outlook, NOAA radar

Mountain View, CA
Sunday, July 5 at 10:55 AM
64
°
Mostly Clear
Feels like
66°
Humidity
83%
Wind
5 mph
Sunrise
10:53 PM
Sunset
1:32 PM
Mountain View, CA
Hour by hour · 24h
24-Hour ForecastMountain View, CA: 24-hour forecast. Temperatures range from 55 to 74 degrees Fahrenheit.
L 55°H 74°
Mountain View, CA
7-day forecast
  1. Today
    Jul 5
    Foggy
    —
    —
    74°57°—
  2. Monday
    Jul 6
    Foggy
    —
    —
    74°55°0°
  3. Tuesday
    Jul 7
    Partly Cloudy
    —
    —
    80°53°+6°
  4. Wednesday
    Jul 8
    Clear
    —
    —
    84°55°+4°
  5. Thursday
    Jul 9
    Clear
    —
    —
    85°58°+1°
  6. Friday
    Jul 10
    Overcast
    —
    —
    87°57°+2°
  7. Saturday
    Jul 11
    Overcast
    —
    —
    94°64°+7°
Mountain View, CA
Next 24 hours · Cool now
50°64°78°6a12p6p12anow 62°high 74°low 55°
Mountain View, CA
Anemometer · 24h winds · from true
NESW
From · True
NE
038° · veering 21°
Direction
NE
038°
Sustained
5
mph
Gust
6
mph
Peak 24h
13
avg 6
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 6 · pk 13 @ 8:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 142SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Mountain View, CA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1013.1
0.0 mb in 3h · steady · 29.92 inHg
Now
1013.1
mb
3h
0.0
mb
12h
-0.4
mb
24h
-0.7
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1011–1013
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1013.31011.31012.6
−24h−18h−12h−6hnow
Air sits at the threshold — small shifts decide the day.
Mountain View, CA
Air quality
36
AQI
Good
→-1 in 6h

AQI 36 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.1 µg/m³ (AQI 45) with a 0.72 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERGood
8.1μg/m³
PM 10Good
11μg/m³
NO₂Good
5μg/m³
OzoneGood
55μg/m³
UV IndexModerate
4.5

What's driving it

PM × Wind × Precip

PM2.5 at 8.1 µg/m³ (AQI 45) with a 0.72 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.72
Wind
light
Recent rain
0h in last 6h
Pattern
stagnant smoke

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³300
Mountain View, CA
Sky cover · visibility · 24h
Cloud cover
35%
MOSTLY CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
32.6mi
UNLIMITED
56 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
17:55 UTC · Mountain View, CA · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
17:55 UTC · Mountain View, CA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Mountain View, CA
Satellite · infrared · animated
Mountain View, CA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Mountain View, CA
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:23 AM
Sunrise
10:53 PM
Daylight
14h 39m
Sunset
1:32 PM
Civil dusk
9:04 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Mountain View, CA
The moon
Waning Gibbous
71% illuminated
Moonrise
11:27 PM
Moonset
11:27 AM
In sign
♓︎ Pisces
Mountain View, CA
Microseason
Jul 1–5

Summer heat deepens across the valleys

weather
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Mountain View at a glance

  • Today vs. normal: 10°F below the seasonal normal for this latitude
  • Last frost: March 31 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP codes: 94040, 94041, 94043

16-Day Forecast — Mountain View

  1. Sun74°57°0%
  2. Mon74°55°0%
  3. Tue80°53°1%
  4. Wed84°55°1%
  5. Thu85°58°0%
  6. Fri87°57°0%
  7. Sat94°64°1%
  8. Sun83°68°1%
  9. Mon91°66°3%
  10. Tue93°64°4%
  11. Wed92°63°1%
  12. Thu92°62°3%
  13. Fri95°68°0%
  14. Sat91°66°0%
  15. Sun88°63°3%
  16. Mon88°61°3%

Forecast data from Open-Meteo (CC BY 4.0).

Live wind & temperature near Mountain View

Right now in the garden

Peak growing season

As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

January 1–5: New year in coastal mist.January 6–10: Hills hold the winter cold.January 11–15: Light lengthens over wet earth.January 16–20: The green pulse quickens.January 21–25: Spring green spreads inland.January 26–31: Winter's grip releases.February 1–5: Fog lifts, flowers open.February 6–10: Blooms erupt across chaparral.February 11–15: Winter blooms at their peak.February 16–20: Rivers recede, flowers spread.February 21–25: Earth warms, flowers rush upslope.February 26–28: Spring advances on cool winds.March 1–5: Grass and trees bud and break.March 6–10: Insects wake and feed.March 11–15: Blossoms crown the hillsides.March 16–20: Monarch chrysalis emergence.March 21–25: Light overtakes dark at equinox.March 26–31: California poppy ablaze.April 1–5: Spring rain feeds the seedlings.April 6–10: Warblers flood the understory.April 11–15: Allen's hummingbirds in courtship dives.April 16–20: Coastal fog settles; sun breaks midday.April 21–25: Oak canopies full and green.April 26–30: Chaparral awakens after spring rains.May 1–5: Coastal wildflowers at their peak.May 6–10: Gray whales complete their migration north.May 11–15: Redwood coast in cool shade.May 16–20: Fog and sun in daily rhythm.May 21–25: Summer approaches; hills turn gold.May 26–31: Dry season begins; tule fog in valleys.June 1–5: Coastal fog thickens at dawn.June 6–10: California poppies fade as heat rises.June 11–15: Summer solstice light stretched thin.June 16–20: Bay laurel fragrance sweetens shade.June 21–25: Longest daylight, driest air.June 26–30: Fog banks mask the turning tide.July 1–5: Summer heat deepens across the valleys.July 6–10: Warm winds drive dryness inland.July 11–15: Pacific high settles in firmly.July 16–20: Young hawks take to the thermals.July 21–25: Peak fire season, peak heat.July 26–31: Chaparral poised for ignition.August 1–5: August begins in scorching stillness.August 6–10: Autumn's first cool breath arrives.August 11–15: Cool winds signal the turning year.August 16–20: Evening cicada chorus.August 21–25: Marine layer descent.August 26–31: Monarch staging begins.September 1–5: Fire season intensity.September 6–10: Dew on drying grasses.September 11–15: Raptor passage begins.September 16–20: Equinox descent.September 21–25: Ceanothus blooms again.September 26–30: Insects retreat below.October 1–5: Creeks begin to whisper.October 6–10: Santa Ana wind season.October 11–15: Wildflower anticipation.October 16–20: Chaparral embers glow.October 21–25: First atmospheric river looms.October 26–31: Rains return at last.November 1–5: Coast live oak leaves turn amber.November 6–10: California lilac blooms in winter light.November 11–15: First rain greens the chaparral.November 16–20: Coastal fog thickens as storms approach.November 21–25: Thanksgiving rains swell the valleys.November 26–30: Autumn's last breath yields to winter.December 1–5: December arrives, storms accelerate.December 6–10: Winter solstice season intensifies.December 11–15: Deep winter: rivers at flood stage.December 16–20: Winter salmon runs peak in northern rivers.December 21–25: Winter solstice: the sun turns.December 26–31: Year's end in wind and rain.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · July 1–5

Summer heat deepens across the valleys

Inland temperatures exceed 95°F regularly; fire danger reaches moderate to high across most of the region.

Day 186 of 365 · Wedge 37 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
Aprillettuce, peas, spinach, radishes—
Maylettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
August—tomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
November——
December——

A year in weather

August is Mountain View's warmest stretch (~68°F) and December its coldest (~51°F); precipitation crests in February at 3.2 inches and ebbs in July to 0.0 inches.

MonthMean tempPrecipRainy days
January51°3.0″6
February53°3.2″7
March56°2.5″6
April58°1.2″4
May62°0.5″2
June65°0.2″0
July67°0.0″0
August68°0.0″0
September67°0.1″0
October63°0.7″2
November55°1.6″4
December51°3.0″7

Regional context

In Mountain View, NOAA NCEI 1991-2020 normals put January near 51°F and July near 67°F — a 17°F seasonal arc — with about 15.9 inches of precipitation over 37 rainy or snowy days.

Cool-season fronts carry Mountain View's rain: February logs 3.2 inches on 6.8 days, against July's 0.0 inches on 0.0 — winter does the heavy lifting in Mountain View. That groups Mountain View with places like Los Altos, CA, Sunnyvale, CA and Loyola, CA on the same cool-season storm track.

With a coldest-month mean of 51°F, Mountain View stays mostly frost-free and grows year-round. The August peak near 68°F is Mountain View's real limit, pushing cool-season vegetables to spring and fall. Within Mountain View, low or inland lots lose 3-5°F overnight versus Mountain View's coastal ground.

Similar climates: Los Altos, CA, Sunnyvale, CA, Loyola, CA, Palo Alto, CA, Los Altos Hills, CA.

Frequently asked

When does it freeze in Mountain View?
Frost typically leaves Mountain View by mid-April and returns to Mountain View near mid-November.
What is the rainy season in Mountain View?
February is the wettest month in Mountain View, about 3.2 inches on average; the year totals roughly 16 inches.
What is the warmest month in Mountain View?
August is Mountain View's warmest month, averaging about 68°F.
What is the coldest month in Mountain View?
Mountain View bottoms out in December, with a mean near 51°F.
When can I start a vegetable garden in Mountain View?
Time tomatoes in Mountain View for two weeks after mid-April; peas and greens start at Mountain View's frost line.
How many rainy days does Mountain View get?
Mountain View records around 37 days of measurable precipitation annually.
What hardiness zone is Mountain View?
Mountain View's hardiness zone tracks its winter low; with December near 51°F, check the USDA ZIP map for the exact zone.
What is the 10-day forecast for Mountain View?
Mountain View's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Mountain View?
See this week's day-by-day rain chances for Mountain View in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Mountain View?
Current conditions for Mountain View and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Mountain View forecast updated?
The Mountain View forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Mountain View?
Today's sunrise and sunset times for Mountain View are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Mountain View?
The next few days in Mountain View's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Mountain View, California occupies a hot-summer Mediterranean zone, with January means near 51°F and July around 67°F — a 16°F swing.

In a typical year Mountain View records about 16 inches of precipitation on around 37 days.

The 16°F gap between Mountain View's summer and winter, at 37.4°N, shapes Mountain View's frost calendar.

All cities in California →

San Jose, CA weather →

ZIP codes in Mountain View

  • 94043
  • 94040
  • 94041
  • 94039
  • 94042

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.