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

Olathe, Kansas Weather

Dusk arrives one minute earlier each night. Day 43 of summer. Read this microseason across nine climate regions →

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

Olathe, KS
Sunday, August 2 at 9:57 AM
74
°
Clear
Feels like
78°
Humidity
77%
Wind
6 mph
Sunrise
1:21 AM
Sunset
3:29 PM
Olathe, KS
Hour by hour · 24h
24-Hour ForecastOlathe, KS: 24-hour forecast. Temperatures range from 69 to 88 degrees Fahrenheit.
L 69°H 88°
Olathe, KS
7-day forecast
  1. Today
    Aug 2
    Clear
    —
    —
    88°66°—
  2. Monday
    Aug 3
    Clear
    —
    —
    93°69°+5°
  3. Tuesday
    Aug 4
    Overcast
    —
    —
    93°67°0°
  4. Wednesday
    Aug 5
    Drizzle
    30%
    —
    93°67°0°
  5. Thursday
    Aug 6
    Light Drizzle
    53%
    —
    90°68°-3°
  6. Friday
    Aug 7
    Showers
    35%
    0.21″
    96°68°+6°
  7. Saturday
    Aug 8
    Overcast
    10%
    —
    97°73°+1°
Olathe, KS
Next 24 hours · Mild now
HOT 90°64°78°92°12p6p12a6anow 72°high 88°low 69°
Olathe, KS
Anemometer · 24h winds · from true
NESW
From · True
NNW
341° · veering 6°
Direction
NNW
341°
Sustained
6
mph
Gust
10
mph
Peak 24h
34
avg 8 mph
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 8 mph · pk 34 mph @ 1:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 178SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 6° from the nnw.
Olathe, KS
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
977.6
+0.6 mb in 3h · rising · 28.87 inHg
Now
977.6
mb
3h
+0.6
mb
12h
+0.9
mb
24h
+2.3
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 974–978
970975980985-21h-18h-15h-12h-9h-6h-3h-24hNOW976.6974.3976.6
Deep low — expect rough seas, strong wind, and persistent rain.
Olathe, KS
Air quality
43
AQI
Good
→+1 in 6h

AQI 43 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points).

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

PM 2.5Good
4.5μg/m³
PM 10Good
5μg/m³
NO₂Good
6μg/m³
OzoneDRIVERGood
54μg/m³
UV IndexLow
1.9

What's driving it

PM × Wind × Precip

PM2.5 at 4.5 µg/m³ (AQI 25) with a 0.98 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in stagnant 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 TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³330
Olathe, KS
Sky cover · visibility · 24h
Cloud cover
2%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
41.2mi
UNLIMITED
63 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
14:57 UTC · Olathe, KS · 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
14:57 UTC · Olathe, KS · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Olathe, KS
Satellite · infrared · animated
Olathe, KS
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Olathe, KS
Almanac · Sunday, August 2
Red sky at night, sailor's delight.
Civil dawn
5:52 AM
Sunrise
1:21 AM
Daylight
14h 08m
Sunset
3:29 PM
Civil dusk
9:00 PM
Planting note
Sow fall peas. Start kale and collard seedlings for fall.
Olathe, KS
The moon
Waning Gibbous
84% illuminated
Moonrise
10:02 PM
Moonset
10:25 AM
In sign
♓︎ Pisces
Olathe, KS
Microseason
Aug 1–5

Dusk arrives one minute earlier each night

celestial
Jan 159% of the yearDec 31

Read this microseason across nine climate regions →

Olathe at a glance

  • Today vs. normal: 10°F above the seasonal normal for this latitude
  • Last frost: April 9 (climatological average for this latitude)
  • Microseason: Aug 1–5
  • Planting window: Sow fall peas. Start kale and collard seedlings for fall.

ZIP codes: 66061, 66062

16-Day Forecast — Olathe

  1. Sun88°66°0%
  2. Mon93°69°0%
  3. Tue93°67°0%
  4. Wed93°67°30%
  5. Thu90°68°53%
  6. Fri96°68°35%
  7. Sat97°73°10%
  8. Sun99°75°7%
  9. Mon97°80°6%
  10. Tue96°74°6%
  11. Wed102°79°13%
  12. Thu105°81°24%
  13. Fri107°78°20%
  14. Sat93°71°26%
  15. Sun100°69°32%
  16. Mon104°68°26%

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

Live wind & temperature near Olathe

Right now in the garden

Peak growing season

As of August 2, 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 — Olathe

SPC includes Olathe in the general thunderstorm area day after tomorrow — no severe risk, but storms are possible.

  • TODAYNONENo severe risk
  • TOMORROWNONENo severe risk
  • 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.

Sun & seasons in Olathe

Olathe sits in Johnson County, where the year’s longest day runs 14h 54m of daylight and its shortest just 9h 26m — a swing of +5h 28m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.

Wichita, the state’s largest city, lies about 160 miles to the WSW. The nearest town Olathe tracks is Overland Park, roughly 7 miles to the E.

Air quality in Olathe’s county has trended dirtier since 2020; its cleanest year on record was 2020 (median AQI 41). See the full air-quality history for Olathe.

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 · August 1–5

Dusk arrives one minute earlier each night

Sunset slides back toward 8 PM; darkness creeps in, signaling summer's decline though heat persists.

Day 214 of 365 · Wedge 43 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

July is Olathe's warmest stretch (~81°F) and January its coldest (~30°F); precipitation crests in May at 5.7 inches and ebbs in January to 1.4 inches.

MonthMean tempPrecipRainy days
January30°1.4″11
February34°1.5″10
March44°3.4″15
April56°3.9″15
May65°5.7″17
June75°5.5″14
July81°3.4″12
August80°3.5″12
September72°3.0″11
October59°3.2″11
November44°3.1″11
December32°1.9″11

Regional context

Olathe's climate, from NOAA NCEI 1991-2020 station normals, pairs 30°F Januarys with 81°F Julys — a 52°F swing. About 39.4 inches of precipitation falls over roughly 149 days a year.

Olathe's rain peaks in summer: May brings 5.7 inches over 16.5 thunderstorm-fed days, while January sees just 1.4 inches across 10.9 days under cooler, drier air. That summer-storm rhythm groups Olathe with places like Lenexa, KS, Overland Park, KS and Gardner, KS.

Olathe's growing window opens around mid-April, once Olathe's overnight lows stop freezing — sow kale, peas, spinach, and parsnips. Hold Olathe's tender crops — tomatoes, peppers, basil — until 10-14 days past Olathe's last frost. It shuts near mid-November, when freezes return to Olathe and tender plants need cover. In Olathe, low spots run 4-7°F colder than nearby slopes, nudging Olathe's frost dates a week.

Similar climates: Lenexa, KS, Overland Park, KS, Gardner, KS, Spring Hill, KS, Shawnee, KS.

Naturalist notes

Eastern redbuds typically open their first pink blooms in Olathe during the second or third week of April, a visible marker that soil temperatures have crossed into consistent warming.

Common purple martin scouts usually appear over the area by late March, with active nest colonization underway by the last week of April.

Frequently asked

When does it freeze in Olathe?
In Olathe, expect the last spring frost near mid-April; Olathe's first autumn frost comes around mid-November.
What is the rainy season in Olathe?
Rainfall in Olathe peaks in May near 5.7 inches, out of about 39 inches annually.
What is the warmest month in Olathe?
Olathe peaks in July, when the mean runs near 81°F.
What is the coldest month in Olathe?
January is Olathe's coldest month, averaging about 30°F.
When can I start a vegetable garden in Olathe?
Around mid-April, start frost-hardy crops in Olathe; tomatoes and basil belong a fortnight later.
How many rainy days does Olathe get?
Olathe records around 149 days of measurable precipitation annually.
What hardiness zone is Olathe?
With January around 30°F, Olathe's zone reflects that minimum — the USDA ZIP map confirms Olathe's band.
What is the 10-day forecast for Olathe?
Olathe'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 Olathe?
See this week's day-by-day rain chances for Olathe in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Olathe?
Current conditions for Olathe and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Olathe forecast updated?
The Olathe forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Olathe?
Today's sunrise and sunset times for Olathe 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 Olathe?
The next few days in Olathe's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Set in a humid subtropical zone, Olathe, Kansas swings from 30°F in the heart of winter to 81°F at midsummer — a 51°F arc.

In a typical year Olathe records about 39 inches of precipitation on around 149 days.

Olathe's 51°F range, set by its 38.9°N position, drives frost timing and what thrives in Olathe.

All cities in Kansas →

Kansas City, MO weather →

ZIP codes in Olathe

  • 66062
  • 66061
  • 66051
  • 66063

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.