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St. Matthews, Kentucky Weather

Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →

St. Matthews weather forecast — hour by hour, 7-day outlook, NOAA radar

St. Matthews, KY
Saturday, July 4 at 10:13 PM
83
°
Clear
Feels like
91°
Humidity
74%
Wind
5 mph
Sunrise
2:24 AM
Sunset
5:09 PM
St. Matthews, KY
Hour by hour · 24h
24-Hour ForecastSt. Matthews, KY: 24-hour forecast. Temperatures range from 74 to 88 degrees Fahrenheit with a 37% chance of precipitation at 5 PM.
L 74°H 88°
St. Matthews, KY
7-day forecast
  1. Today
    Jul 4
    Mostly Clear
    13%
    —
    91°71°—
  2. Sunday
    Jul 5
    Overcast
    37%
    —
    88°74°-3°
  3. Monday
    Jul 6
    Overcast
    22%
    —
    85°72°-3°
  4. Tuesday
    Jul 7
    Overcast
    10%
    —
    84°68°-1°
  5. Wednesday
    Jul 8
    Mostly Clear
    —
    —
    88°67°+4°
  6. Thursday
    Jul 9
    Overcast
    38%
    —
    91°71°+3°
  7. Friday
    Jul 10
    Thunderstorm
    53%
    0.02″
    89°72°-2°
St. Matthews, KY
Next 24 hours · Warm now
HOT 90°70°81°92°6p12a6a12pnow 83°high 88°low 74°PRECIP %
St. Matthews, KY
Anemometer · 24h winds · from true
NESW
From · True
W
265° · veering 51°
Direction
W
265°
Sustained
5
mph
Gust
13
mph
Peak 24h
20
avg 5
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 5 · pk 20 @ 12:00a
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 243SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 51° from the w.
St. Matthews, KY
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
993.7
-0.1 mb in 3h · steady · 29.34 inHg
Now
993.7
mb
3h
-0.1
mb
12h
-4.9
mb
24h
-5.4
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 994–999
9859909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW999.1993.7993.7
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
St. Matthews, KY
Air quality
88
AQI
Moderate
↑+38 in 6h

AQI 88 (Moderate), driven by PM2.5. AQI up 38 in the last 6 hours — air quality is degrading. PM2.5 at 9.6 µg/m³ (AQI 52) with a 0.95 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
9.6μg/m³
PM 10Good
10μg/m³
NO₂Good
6μg/m³
OzoneModerate
90μg/m³
UV IndexLow
0.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 43. Overcast through the UV peak window (cloud cover ~64%) — afternoon ozone should stay flat.

Present
AQI 43
UV peak
0.0 at 1 PM
Sky at peak
overcast
Projected peak
AQI 5

PM × Wind × Precip

PM2.5 at 9.6 µg/m³ (AQI 52) with a 0.95 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.95
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/m³360
St. Matthews, KY
Sky cover · visibility · 24h
Cloud cover
9%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
42.2mi
UNLIMITED
66 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
02:13 UTC · St. Matthews, KY · 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
02:13 UTC · St. Matthews, KY · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
St. Matthews, KY
Satellite · infrared · animated
St. Matthews, KY
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
St. Matthews, KY
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:54 AM
Sunrise
2:24 AM
Daylight
14h 45m
Sunset
5:09 PM
Civil dusk
9:42 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
St. Matthews, KY
The moon
Waning Gibbous
77% illuminated
Moonrise
11:58 PM
Moonset
11:55 AM
In sign
♓︎ Pisces
St. Matthews, KY
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

St. Matthews at a glance

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

16-Day Forecast — St. Matthews

  1. Sat91°71°13%
  2. Sun88°74°37%
  3. Mon85°72°22%
  4. Tue84°68°10%
  5. Wed88°67°7%
  6. Thu91°71°38%
  7. Fri89°72°53%
  8. Sat85°70°45%
  9. Sun80°67°23%
  10. Mon84°61°16%
  11. Tue87°64°9%
  12. Wed86°70°19%
  13. Thu88°65°29%
  14. Fri85°68°39%
  15. Sat94°72°39%
  16. Sun95°79°40%

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

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.

SPC Convective Outlook

Storm Prediction Center — St. Matthews

SPC has placed St. Matthews in the Marginal Risk category for severe thunderstorms today.

  • TODAYMRGLMarginal Risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Isolated severe storms possible. Limited threat for hail or damaging wind.

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 · July 1–5

Cicadas claim the scorching afternoon

Dog-day cicadas emerge in waves, their rasp dominating every sunny hour; heat peaks above 90 degrees daily.

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

In St. Matthews, July runs warmest near 79°F and January coldest around 35°F, while May is the wettest month (4.8 inches) and August the driest (3.3 inches).

MonthMean tempPrecipRainy days
January35°3.5″6
February38°3.5″6
March47°4.5″8
April58°4.8″8
May68°4.8″8
June76°4.4″8
July79°3.5″6
August78°3.3″6
September72°3.9″5
October60°3.5″5
November47°3.8″6
December39°4.5″7

Regional context

In St. Matthews, NOAA NCEI 1991-2020 normals put January near 35°F and July near 79°F — a 45°F seasonal arc — with about 48 inches of precipitation over 79 rainy or snowy days.

St. Matthews's precipitation spreads evenly: May peaks at 4.8 inches on 8.0 wet days, while August holds 3.3 inches over 5.5 — no month dominates St. Matthews's rain calendar. It is a balanced pattern St. Matthews shares with places like Richlawn, KY, Norbourne Estates, KY and Beechwood Village, KY.

Once St. Matthews passes mid-April, overnight freezes fade and peas, lettuce, spinach, and radishes can be sown. Tomatoes and peppers do best set out two weeks later in St. Matthews, once nights clear the mid-40s°F. By mid-November, frost is back in St. Matthews — protect or harvest anything tender. St. Matthews's low ground holds frost later into spring than St. Matthews's benches, which run 3-5 days ahead.

Similar climates: Richlawn, KY, Norbourne Estates, KY, Beechwood Village, KY, Woodlawn Park, KY, Bellewood, KY.

Frequently asked

When does it freeze in St. Matthews?
St. Matthews's last spring frost lands near mid-April, and in St. Matthews the first fall frost follows around mid-November.
What is the rainy season in St. Matthews?
May is the wettest month in St. Matthews, about 4.8 inches on average; the year totals roughly 48 inches.
What is the warmest month in St. Matthews?
The warmest stretch in St. Matthews comes in July, around 79°F on average.
What is the coldest month in St. Matthews?
On average January is the chilliest month in St. Matthews, about 35°F.
When can I start a vegetable garden in St. Matthews?
St. Matthews's last frost (mid-April) cues hardy greens; in St. Matthews, hold heat-lovers two weeks past.
How many rainy days does St. Matthews get?
St. Matthews averages about 79 days with measurable rain or snow each year.
What hardiness zone is St. Matthews?
St. Matthews sits in the USDA zone set by January lows near 35°F; the USDA ZIP tool gives the band.
What is the 10-day forecast for St. Matthews?
St. Matthews'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 St. Matthews?
See this week's day-by-day rain chances for St. Matthews in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in St. Matthews?
Current conditions for St. Matthews and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the St. Matthews forecast updated?
The St. Matthews forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in St. Matthews?
Today's sunrise and sunset times for St. Matthews 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 St. Matthews?
The next few days in St. Matthews's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

St. Matthews's humid subtropical climate in Kentucky pairs 35°F Januarys with 79°F Julys, 44°F apart across the seasons.

Rain and snow bring St. Matthews roughly 48 inches a year across approximately 79 measurable-precipitation days.

The 44°F gap between St. Matthews's summer and winter, at 38.2°N, shapes St. Matthews's frost calendar.

All cities in Kentucky →

Louisville, KY weather →

ZIP codes in St. Matthews

  • 40222
  • 40207

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.