Weather StoryAlmanac, microseasons, and the day's weather story.

Olympia, South Carolina Weather

Heat settles and the rain begins. Day 90 of spring. Read this microseason across nine climate regions →

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

Olympia, SC
Wednesday, June 17 at 4:17 PM
84
°
Clear
Feels like
91°
Humidity
70%
Wind
11 mph
Sunrise
2:12 AM
Sunset
4:37 PM
Olympia, SC
Hour by hour · 24h
24-Hour ForecastOlympia, SC: 24-hour forecast. Temperatures range from 73 to 93 degrees Fahrenheit.
L 73°H 93°
Olympia, SC
7-day forecast
  1. Today
    Jun 17
    Heavy Rain
    50%
    0.61″
    84°72°—
  2. Thursday
    Jun 18
    Thunderstorm
    33%
    —
    93°73°+9°
  3. Friday
    Jun 19
    T-storm w/ Hail
    72%
    0.10″
    94°72°+1°
  4. Saturday
    Jun 20
    Overcast
    34%
    —
    97°71°+3°
  5. Sunday
    Jun 21
    Thunderstorm
    15%
    —
    97°75°0°
  6. Monday
    Jun 22
    Overcast
    20%
    —
    98°78°+1°
  7. Tuesday
    Jun 23
    Overcast
    33%
    —
    90°74°-8°
Olympia, SC
Next 24 hours · Warm now
HOT 90°68°83°98°12p6p12a6anow 84°high 93°low 73°PRECIP %
Olympia, SC
Anemometer · 24h winds · from true
NESW
From · True
SW
220° · backing 8°
Direction
SW
220°
Sustained
11
mph
Gust
18
mph
Peak 24h
22
avg 5
Beaufort · 3 · GENTLE 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 22 @ 10:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 2514SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 8° from the sw.
Olympia, SC
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1008.6
-1.2 mb in 3h · falling · 29.78 inHg
Now
1008.6
mb
3h
-1.2
mb
12h
+0.3
mb
24h
-0.2
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1008–1010
1000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR-21h-18h-15h-12h-9h-6h-3h-24hNOW1009.91008.11008.5
−24h−18h−12h−6hnow
Pressure giving way — clouds thicken and rain edges closer.
Olympia, SC
Air quality
30
AQI
Good
↑+11 in 6h▲Peak ~37 @ 11 PM

AQI 30 (Good), driven by Ozone. AQI up 11 over the last 6 hours (gradual rise). Ozone at AQI 41 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.

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

PM 2.5Good
2.2μg/m³
PM 10Good
3μg/m³
NO₂Good
1μg/m³
OzoneDRIVERModerate
87μg/m³
UV IndexModerate
4.8

What's driving it

Ozone × UV × Sky

Ozone at AQI 41 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.

Present
AQI 41
UV peak
4.3 at earlier today
Sky at peak
overcast
Projected peak
AQI 41

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 TREND50100WEDTHUFRISATSUNMONTUEWED7-DAY PM2.5 TREND · μg/m³300
Olympia, SC
Sky cover · visibility · 24h
Cloud cover
1%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
50.6mi
UNLIMITED
61 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
20:17 UTC · Olympia, SC · 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
20:17 UTC · Olympia, SC · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Olympia, SC
Satellite · infrared · animated
Olympia, SC
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Olympia, SC
Almanac · Wednesday, June 17
A summer fog for fair, a winter fog for rain.
Civil dawn
5:44 AM
Sunrise
2:12 AM
Daylight
14h 25m
Sunset
4:37 PM
Civil dusk
9:07 PM
Planting note
Stake and prune tomato suckers. Watch for squash vine borers.
Olympia, SC
The moon
Waxing Crescent
10% illuminated
Moonrise
8:41 AM
Moonset
10:41 PM
In sign
♌︎ Leo
Olympia, SC
Microseason
Jun 16–20

Heat settles and the rain begins

bird
Jan 146% of the yearDec 31

Read this microseason across nine climate regions →

Olympia at a glance

  • Today vs. normal: 3°F above the seasonal normal for this latitude
  • Last frost: March 11 (climatological average for this latitude)
  • Microseason: Jun 16–20
  • Planting window: Stake and prune tomato suckers. Watch for squash vine borers.

16-Day Forecast — Olympia

  1. Wed84°72°50%
  2. Thu93°73°33%
  3. Fri94°72°72%
  4. Sat97°71°34%
  5. Sun97°75°15%
  6. Mon98°78°20%
  7. Tue90°74°33%
  8. Wed95°72°25%
  9. Thu98°75°19%
  10. Fri102°77°24%
  11. Sat100°78°20%
  12. Sun101°78°25%
  13. Mon102°75°43%
  14. Tue93°75°42%
  15. Wed101°74°49%
  16. Thu103°78°60%

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

Right now in the garden

Peak growing season

As of June 17, 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 — Olympia

SPC has placed Olympia in the Marginal Risk category for severe thunderstorms tomorrow.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWMRGLMarginal Risk
  • 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 · June 16–20

Heat settles and the rain begins

Summer heat locks in; afternoon thunderstorms arrive with humid intensity, feeding kudzu and swamp vegetation.

Day 168 of 365 · Wedge 34 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

July is Olympia's warmest stretch (~82°F) and January its coldest (~45°F); precipitation crests in August at 5.7 inches and ebbs in October to 2.1 inches.

MonthMean tempPrecipRainy days
January45°4.0″14
February49°3.4″12
March56°4.1″13
April64°3.4″13
May72°2.9″14
June79°3.9″17
July82°4.9″23
August80°5.7″25
September76°3.3″15
October67°2.1″9
November56°2.9″11
December48°4.0″13

Frequently asked

When does it freeze in Olympia?
Frost typically leaves Olympia by mid-March and returns to Olympia near mid-December.
What is the rainy season in Olympia?
Olympia sees its heaviest rain in August (around 5.7 inches), part of roughly 45 inches a year.
What is the warmest month in Olympia?
Olympia peaks in July, when the mean runs near 82°F.
What is the coldest month in Olympia?
January is Olympia's coldest month, averaging about 45°F.
When can I start a vegetable garden in Olympia?
Around mid-March, start frost-hardy crops in Olympia; tomatoes and basil belong a fortnight later.
How many rainy days does Olympia get?
Expect roughly 180 wet days a year in Olympia.
What hardiness zone is Olympia?
Since January in Olympia averages 45°F, Olympia's USDA zone follows that floor — confirm it by ZIP.
What is the 10-day forecast for Olympia?
Olympia'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 Olympia?
See this week's day-by-day rain chances for Olympia in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Olympia?
Current conditions for Olympia and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Olympia forecast updated?
The Olympia forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Olympia?
Day length in Olympia peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
How accurate is the weather forecast for Olympia?
The next few days in Olympia's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Set in a humid subtropical zone, Olympia, South Carolina swings from 45°F in the heart of winter to 82°F at midsummer — a 37°F arc.

Across the year, Olympia collects about 45 inches of precipitation over roughly 180 days with measurable rain or snow.

Olympia's 37°F range, set by its 34.0°N position, drives frost timing and what thrives in Olympia.

All cities in South Carolina →

Columbia, SC weather →

ZIP codes in Olympia

  • 29201
  • 29222

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.