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Mountain Brook, Alabama Weather

Sun climbs to its northern throne. Day 88 of spring. Read this microseason across nine climate regions →

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

Mountain Brook, AL
Monday, June 15 at 3:56 AM
70
°
Clear
Feels like
74°
Humidity
90%
Wind
5 mph
Sunrise
12:36 AM
Sunset
2:58 PM
Mountain Brook, AL
Hour by hour · 24h
24-Hour ForecastMountain Brook, AL: 24-hour forecast. Temperatures range from 69 to 83 degrees Fahrenheit.
L 69°H 83°
Mountain Brook, AL
7-day forecast
  1. Today
    Jun 15
    Overcast
    —
    —
    83°69°—
  2. Tuesday
    Jun 16
    Rain
    76%
    0.77″
    74°68°-9°
  3. Wednesday
    Jun 17
    Drizzle
    60%
    —
    84°67°+10°
  4. Thursday
    Jun 18
    Heavy Showers
    78%
    1.5″
    72°69°-12°
  5. Friday
    Jun 19
    Showers
    73%
    —
    75°68°+3°
  6. Saturday
    Jun 20
    Overcast
    34%
    —
    85°63°+10°
  7. Sunday
    Jun 21
    Light Drizzle
    32%
    —
    85°66°0°
Mountain Brook, AL
Next 24 hours · Mild now
64°75°86°12a6a12p6pnow 71°high 83°low 69°
Mountain Brook, AL
Anemometer · 24h winds · from true
NESW
From · True
WNW
295° · veering 10°
Direction
WNW
295°
Sustained
5
mph
Gust
6
mph
Peak 24h
24
avg 7
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 7 · pk 24 @ 2:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 153SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Mountain Brook, AL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
981.3
-1.3 mb in 3h · falling · 28.98 inHg
Now
981.3
mb
3h
-1.3
mb
12h
+0.5
mb
24h
-0.9
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 980–983
975980985990-21h-18h-15h-12h-9h-6h-3h-24hNOW983.1979.7980.9
−24h−18h−12h−6hnow
Deep low still deepening — rough seas, strong wind, persistent rain.
Mountain Brook, AL
Air quality
39
AQI
Good
↓-6 in 6h

AQI 39 (Good), driven by PM2.5. AQI down 6 over the last 6 hours (gradual decline). PM2.5 at 5.8 µg/m³ (AQI 32) with a 0.98 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
5.8μg/m³
PM 10Good
6μg/m³
NO₂Good
6μg/m³
OzoneGood
43μg/m³
UV IndexLow
0.0

What's driving it

PM × Wind × Precip

PM2.5 at 5.8 µg/m³ (AQI 32) with a 0.98 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.98
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 TREND50100MONTUEWEDTHUFRISATSUNMON7-DAY PM2.5 TREND · μg/m³300
Mountain Brook, AL
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
27.1mi
UNLIMITED
78 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
08:56 UTC · Mountain Brook, AL · 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
08:56 UTC · Mountain Brook, AL · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Mountain Brook, AL
Satellite · infrared · animated
Mountain Brook, AL
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Mountain Brook, AL
Almanac · Monday, June 15
A summer fog for fair, a winter fog for rain.
Civil dawn
5:09 AM
Sunrise
12:36 AM
Daylight
14h 22m
Sunset
2:58 PM
Civil dusk
8:28 PM
Planting note
Stake and prune tomato suckers. Watch for squash vine borers.
Mountain Brook, AL
The moon
New Moon
0% illuminated
Moonrise
5:45 AM
Moonset
8:08 PM
In sign
♊︎ Gemini
Mountain Brook, AL
Microseason
Jun 11–15

Sun climbs to its northern throne

insect
Jan 145% of the yearDec 31

Read this microseason across nine climate regions →

Mountain Brook at a glance

  • Today vs. normal: 12°F below the seasonal normal for this latitude
  • Last frost: March 8 (climatological average for this latitude)
  • Microseason: Jun 11–15
  • Planting window: Stake and prune tomato suckers. Watch for squash vine borers.

15-Day Forecast — Mountain Brook

  1. Mon83°69°4%
  2. Tue74°68°76%
  3. Wed84°67°60%
  4. Thu72°69°78%
  5. Fri75°68°73%
  6. Sat85°63°34%
  7. Sun85°66°32%
  8. Mon90°70°29%
  9. Tue91°72°42%
  10. Wed86°72°37%
  11. Thu85°70°24%
  12. Fri92°71°63%
  13. Sat97°74°53%
  14. Sun96°73°46%
  15. Mon92°73°60%

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

Right now in the garden

Peak growing season

As of June 15, 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.

SPC Convective Outlook

Storm Prediction Center — Mountain Brook

SPC has placed Mountain Brook in the General Thunderstorms category for severe thunderstorms today.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

January 1–5: Frost quiets the live oaks.January 6–10: Still water thickens with ice.January 11–15: Springs begin to move beneath ice.January 16–20: Cardinal dawn calls grow bolder.January 21–25: Late January thaw pulses.January 26–31: Last freeze locks the land.February 1–5: February's lengthening light.February 6–10: Warming winds thaw the margin.February 11–15: Magnolia blooms break the gray.February 16–20: Mockingbirds resume the dawn chorus.February 21–25: Rain replaces the last snow.February 26–28: Mist clings to greening valleys.March 1–5: The green pulse awakens.March 6–10: Hibernators emerge to call.March 11–15: Dogwood and redbud ignite.March 16–20: Swallowtails emerge from winter silk.March 21–25: Light crowns the dogwood canopy.March 26–31: Redbud cascades over the thaw.April 1–5: Thunder announces the wet season.April 6–10: Barn swallows carve the warming sky.April 11–15: Magnolia blooms and falls in a breath.April 16–20: First rainbows arch over thunderheads.April 21–25: Reeds push through marsh water.April 26–30: Frost retreats; seedlings rise free.May 1–5: Warblers flood the canopy in waves.May 6–10: Tulip poplar lights the forest crown.May 11–15: Shad pulse upstream through rapids.May 16–20: Roses open on the Piedmont edge.May 21–25: Fireflies scout the humid dusk.May 26–31: Frog choruses rise from every wetland.June 1–5: Fireflies pulse through the magnolias.June 6–10: Kudzu climbs deeper into green.June 11–15: Sun climbs to its northern throne.June 16–20: Heat settles and the rain begins.June 21–25: The longest day turns toward shadow.June 26–30: Fireflies drift through Spanish moss.July 1–5: Cicadas claim the scorching afternoon.July 6–10: Thunderheads boil and break at dusk.July 11–15: Thunder builds each drowsy afternoon.July 16–20: Cicadas claim the long noon.July 21–25: Dog days drape the earth in haze.July 26–31: Katydids begin their rasping chorus.August 1–5: Dusk arrives one minute earlier each night.August 6–10: Meteorological summer's turning page.August 11–15: Cool winds gather at the margins.August 16–20: Dog-day cicadas rise.August 21–25: Heat breaks in creek beds.August 26–31: Monarchs gather strength.September 1–5: Harvests begin in earnest.September 6–10: Dew beads on resurrection fern.September 11–15: Raptors trail the thermals.September 16–20: Day and dark find balance.September 21–25: Thunder quiets the land.September 26–30: Insects retreat below.October 1–5: Swamp waters recede.October 6–10: Maples ignite the ridge.October 11–15: Asters crown the meadows.October 16–20: Crickets sing at dusk.October 21–25: Frost paints the garden.October 26–31: Light rains whisper down.November 1–5: Sweetgum Turns Crimson.November 6–10: Camellia Blooms Break Through.November 11–15: Earth Stiffens Underfoot.November 16–20: Bare Limbs Hold the Light.November 21–25: First Frost Grips the High Ground.November 26–30: North Wind Strips the Last Leaves.December 1–5: Darkness Falls Before Dinner.December 6–10: Winter Locks the Land.December 11–15: Wildlife Retreats to Shelter.December 16–20: Ice Edges Deepen Inward.December 21–25: The Sun Begins its Return.December 26–31: The Year Turns in Silence.🌱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 · June 11–15

Sun climbs to its northern throne

Days lengthen toward solstice; longest light lingers until after 8 PM, heat building steadily.

Day 166 of 365 · Wedge 33 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——
Marchlettuce, peas, spinach, radishes—
Aprillettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash—
Maytomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
July—tomatoes, beans, summer squash
August—tomatoes, beans, summer squash
September—tomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
Novemberfall brassicas, garlic (overwinter), carrots—
December——

A year in weather

Mountain Brook peaks at about 80°F in July and bottoms near 42°F in January; March brings the heaviest rain (5.7 inches) and October the least (2.4 inches).

MonthMean tempPrecipRainy days
January42°5.2″15
February46°4.7″14
March53°5.7″17
April61°4.8″15
May69°3.2″15
June77°3.6″16
July80°4.2″23
August79°4.6″22
September74°2.8″13
October65°2.4″9
November52°4.3″12
December45°5.5″15

Regional context

In Mountain Brook, NOAA NCEI 1991-2020 normals put January near 42°F and July near 80°F — a 38°F seasonal arc — with about 51.1 inches of precipitation over 185 rainy or snowy days.

No season owns Mountain Brook's rain: March reaches 5.7 inches across 16.7 days and October keeps 2.4 inches on 9.1, an even spread through Mountain Brook's year. That even rhythm groups Mountain Brook with places like Vestavia Hills, AL, Birmingham, AL and Homewood, AL.

Around mid-March, Mountain Brook sheds its freezing nights — peas, lettuce, spinach, and radishes go into Mountain Brook's beds. Mountain Brook's heat-lovers — tomatoes, peppers, squash — hold off until Mountain Brook's frost risk clears, 10-14 days on. Frost returns to Mountain Brook near mid-December, ending the tender-crop season. Mountain Brook's low ground holds frost later into spring than Mountain Brook's benches, which run 3-5 days ahead.

Similar climates: Vestavia Hills, AL, Birmingham, AL, Homewood, AL, Brook Highland, AL, Irondale, AL.

Frequently asked

When does it freeze in Mountain Brook?
Frost typically leaves Mountain Brook by mid-March and returns to Mountain Brook near mid-December.
What is the rainy season in Mountain Brook?
Mountain Brook sees its heaviest rain in March (around 5.7 inches), part of roughly 51 inches a year.
What is the warmest month in Mountain Brook?
Mountain Brook peaks in July, when the mean runs near 80°F.
What is the coldest month in Mountain Brook?
January is Mountain Brook's coldest month, averaging about 42°F.
When can I start a vegetable garden in Mountain Brook?
In Mountain Brook, sow peas and hardy greens around mid-March; Mountain Brook's tomatoes and peppers wait two weeks more.
How many rainy days does Mountain Brook get?
Mountain Brook averages about 185 days with measurable rain or snow each year.
What hardiness zone is Mountain Brook?
Since January in Mountain Brook averages 42°F, Mountain Brook's USDA zone follows that floor — confirm it by ZIP.
What is the 10-day forecast for Mountain Brook?
Mountain Brook'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 Brook?
See this week's day-by-day rain chances for Mountain Brook in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Mountain Brook?
Current conditions for Mountain Brook 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 Brook forecast updated?
The Mountain Brook 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 Brook?
Day length in Mountain Brook peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
How accurate is the weather forecast for Mountain Brook?
The next few days in Mountain Brook's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

In Mountain Brook, Alabama, the humid subtropical climate runs from about 42°F in January to 80°F in July, a 38°F seasonal range.

In a typical year Mountain Brook records about 51 inches of precipitation on around 185 days.

From 33.5°N, Mountain Brook sees a 38°F seasonal swing that governs Mountain Brook's planting and frost windows.

All cities in Alabama →

Birmingham, AL weather →

ZIP codes in Mountain Brook

  • 35213
  • 35223
  • 35243
  • 35253
  • 35297

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.