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

Greenville, Wisconsin Weather

Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →

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

Greenville, WI
Saturday, July 4 at 12:51 PM
78
°
Mostly Clear
Feels like
84°
Humidity
72%
Wind
7 mph
Sunrise
12:15 AM
Sunset
3:41 PM
Greenville, WI
Hour by hour · 24h
24-Hour ForecastGreenville, WI: 24-hour forecast. Temperatures range from 62 to 80 degrees Fahrenheit.
L 62°H 80°
Greenville, WI
7-day forecast
  1. Today
    Jul 4
    Overcast
    14%
    —
    80°69°—
  2. Sunday
    Jul 5
    Overcast
    —
    —
    80°62°0°
  3. Monday
    Jul 6
    Clear
    —
    —
    78°59°-2°
  4. Tuesday
    Jul 7
    Overcast
    —
    —
    80°56°+2°
  5. Wednesday
    Jul 8
    Thunderstorm
    48%
    0.76″
    80°63°0°
  6. Thursday
    Jul 9
    Foggy
    55%
    —
    73°60°-7°
  7. Friday
    Jul 10
    Overcast
    17%
    —
    77°57°+4°
Greenville, WI
Next 24 hours · Mild now
58°71°84°12p6p12a6anow 76°high 80°low 62°
Greenville, WI
Anemometer · 24h winds · from true
NESW
From · True
NNE
030° · veering 172°
Direction
NNE
030°
Sustained
7
mph
Gust
9
mph
Peak 24h
18
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 18 @ 3:00a
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 178SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Greenville, WI
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
987.0
+0.5 mb in 3h · steady · 29.15 inHg
Now
987.0
mb
3h
+0.5
mb
12h
+1.8
mb
24h
+0.5
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 984–987
9809859909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW986.8984.3986.8
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Greenville, WI
Air quality
23
AQI
Good
→-1 in 6h▲Peak ~37 @ 11 PM

AQI 23 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 37 now. With UV 6.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 22 around 1 PM.

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

PM 2.5Good
3.0μg/m³
PM 10Good
3μg/m³
NO₂Good
1μg/m³
OzoneDRIVERModerate
79μg/m³
UV IndexHigh
6.2

What's driving it

Ozone × UV × Sky

Ozone at AQI 37 now. With UV 6.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 22 around 1 PM.

Present
AQI 37
UV peak
6.4 at 1 PM
Sky at peak
partly cloudy
Projected peak
AQI 22

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 TREND50100SATSUNMONTUEWEDTHUFRISAT7-DAY PM2.5 TREND · μg/m³350
Greenville, WI
Sky cover · visibility · 24h
Cloud cover
34%
MOSTLY CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
47.5mi
UNLIMITED
57 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
17:51 UTC · Greenville, WI · 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
17:51 UTC · Greenville, WI · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Greenville, WI
Satellite · infrared · animated
Greenville, WI
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Greenville, WI
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
4:40 AM
Sunrise
12:15 AM
Daylight
15h 26m
Sunset
3:41 PM
Civil dusk
9:18 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Greenville, WI
The moon
Waning Gibbous
80% illuminated
Moonrise
10:55 PM
Moonset
9:55 AM
In sign
♓︎ Pisces
Greenville, WI
Microseason
Jul 1–5

Cicadas claim the afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Greenville at a glance

  • Today vs. normal: 11°F above the seasonal normal for this latitude
  • Last frost: May 12 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 54942

16-Day Forecast — Greenville

  1. Sat80°69°14%
  2. Sun80°62°3%
  3. Mon78°59°0%
  4. Tue80°56°3%
  5. Wed80°63°48%
  6. Thu73°60°55%
  7. Fri77°57°17%
  8. Sat81°60°9%
  9. Sun70°57°11%
  10. Mon77°54°11%
  11. Tue77°59°7%
  12. Wed78°60°16%
  13. Thu81°69°19%
  14. Fri83°66°13%
  15. Sat80°66°23%
  16. Sun86°67°26%

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

Right now in the garden

Peak growing season

As of July 4, 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 — Greenville

SPC includes Greenville in the general thunderstorm area today — no severe risk, but storms are possible.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWNONENo severe risk
  • DAY 3NONENo severe risk

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: The year turns in silence.January 6–10: Ice thickens on still water.January 11–15: Shortest shadows lengthen.January 16–20: Pheasants begin to call.January 21–25: Springs begin to thaw.January 26–31: Chickadees announce dawn.February 1–5: East wind softens the frost.February 6–10: Sap begins to rise.February 11–15: First snowdrops appear.February 16–20: Red-winged blackbirds return.February 21–25: Rain begins to replace snow.February 26–28: Skunk cabbage pushes through ice.March 1–5: Ice withdraws from the reservoir.March 6–10: Crocuses open to weak sun.March 11–15: Peepers call from the marsh.March 16–20: Woodcocks spiral at dusk.March 21–25: Equinox — light overtakes dark.March 26–31: Forsythia opens along the fences.April 1–5: Cherry blossoms drift like snow.April 6–10: Warblers appear in the understory.April 11–15: Magnolias bloom and fall in a day.April 16–20: Dogwoods float above the forest.April 21–25: Lilacs perfume the evening.April 26–30: Last frost releases the garden.May 1–5: Warblers flood the Ramble.May 6–10: Tulip poplars light their candles.May 11–15: Shad run up the rivers.May 16–20: Roses open along the stoops.May 21–25: Firefly scouts appear at dusk.May 26–31: Strawberries ripen in the sun.June 1–5: Fireflies rise from the lawn.June 6–10: Elderflowers open in hedgerows.June 11–15: Solstice approaches — longest light.June 16–20: Honeysuckle sweetens the night.June 21–25: Solstice — the sun stands still.June 26–30: Lightning bugs drift through oaks.July 1–5: Cicadas claim the afternoon.July 6–10: Queen Anne's lace lines the roads.July 11–15: Thunder builds each afternoon.July 16–20: Corn reaches for the tassels.July 21–25: Dog days settle in the haze.July 26–31: Katydids begin their chorus.August 1–5: Night falls a minute earlier.August 6–10: Sunflowers face the morning.August 11–15: Goldenrod begins to bloom.August 16–20: Crickets pulse through warm nights.August 21–25: First cool morning surprises.August 26–31: Monarchs stage for flight.September 1–5: School buses reappear.September 6–10: Asters purple the roadsides.September 11–15: Hawk migration over the Hudson.September 16–20: Equinox — dark overtakes light.September 21–25: Apples hang heavy on the branch.September 26–30: Geese begin to chevron south.October 1–5: Witch hazel blooms as others fade.October 6–10: Maples begin to blaze.October 11–15: Frost paints the garden black.October 16–20: Oaks turn bronze and russet.October 21–25: Leaves rattle down the gutters.October 26–31: Clocks fall back — dusk at five.November 1–5: Ginkgos drop overnight.November 6–10: Last leaves cling stubbornly.November 11–15: Juncos arrive from the north.November 16–20: Bare branches reveal the sky.November 21–25: First flurries dust the rooftops.November 26–30: Woodsmoke curls through the block.December 1–5: Darkness settles before dinner.December 6–10: Holly and winterberry persist.December 11–15: Shortest day approaches.December 16–20: Ice begins to form at the edges.December 21–25: Solstice — the sun begins 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 afternoon

Annual cicada buzz begins, peaking in the heat of the day.

Day 185 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——
April——
Maylettuce, peas, spinach, radisheslettuce, peas, radishes
Junelettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
Augusttomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
October—winter squash, tomatoes (last)
November——
December——

A year in weather

The year in Greenville tops out in July (~73°F) and dips lowest in January (~17°F), with June wettest at 3.8 inches and February driest at 1.4 inches.

MonthMean tempPrecipRainy days
January17°1.5″14
February20°1.4″12
March31°2.3″14
April45°2.9″17
May56°3.4″17
June67°3.8″16
July73°2.8″13
August72°2.9″14
September64°3.7″14
October52°2.6″13
November35°2.7″14
December22°1.7″14

Regional context

Greenville's climate, from NOAA NCEI 1991-2020 station normals, pairs 17°F Januarys with 73°F Julys — a 56°F swing. About 31.7 inches of precipitation falls over roughly 171 days a year.

Greenville's rain peaks in summer: June brings 3.8 inches over 15.7 thunderstorm-fed days, while February sees just 1.4 inches across 11.6 days under cooler, drier air. It is a warm-season-wet pattern Greenville shares with places like Hortonville, WI, Fox Crossing, WI and Dale, WI.

Greenville's growing window opens around late-May, once Greenville's overnight lows stop freezing — sow kale, peas, spinach, and parsnips. Warm-soil crops in Greenville wait about two weeks past Greenville's last frost, once the soil warms. Around early-October, freezing nights resume in Greenville and tender crops must come in. In Greenville, low spots run 4-7°F colder than nearby slopes, nudging Greenville's frost dates a week.

Similar climates: Hortonville, WI, Fox Crossing, WI, Dale, WI, Appleton, WI, Menasha, WI.

Frequently asked

When does it freeze in Greenville?
Frost typically leaves Greenville by mid-May and returns to Greenville near mid-October.
What is the rainy season in Greenville?
Rainfall in Greenville peaks in June near 3.8 inches, out of about 32 inches annually.
What is the warmest month in Greenville?
On average July tops the year in Greenville at about 73°F.
What is the coldest month in Greenville?
The coldest stretch in Greenville falls in January, around 17°F on average.
When can I start a vegetable garden in Greenville?
Hardy spring crops go in near mid-May in Greenville; tender peppers and squash wait 10–14 days.
How many rainy days does Greenville get?
Expect roughly 171 wet days a year in Greenville.
What hardiness zone is Greenville?
With January around 17°F, Greenville's zone reflects that minimum — the USDA ZIP map confirms Greenville's band.
What is the 10-day forecast for Greenville?
Greenville'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 Greenville?
See this week's day-by-day rain chances for Greenville in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Greenville?
Current conditions for Greenville and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Greenville forecast updated?
The Greenville forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Greenville?
Today's sunrise and sunset times for Greenville 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 Greenville?
The next few days in Greenville's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

In Greenville, Wisconsin, the warm-summer humid continental climate runs from about 17°F in January to 73°F in July, a 56°F seasonal range.

Rain and snow bring Greenville roughly 32 inches a year across approximately 171 measurable-precipitation days.

Greenville's 56°F range, set by its 44.3°N position, drives frost timing and what thrives in Greenville.

All cities in Wisconsin →

Appleton, WI weather →

ZIP codes in Greenville

  • 54942
  • 54944
  • 54914

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.