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

Platteville, Wisconsin Weather

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

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

Platteville, WI
Saturday, July 4 at 4:57 PM
80
°
Mostly Clear
Feels like
88°
Humidity
76%
Wind
1 mph
Sunrise
12:29 AM
Sunset
3:43 PM
Platteville, WI
Hour by hour · 24h
24-Hour ForecastPlatteville, WI: 24-hour forecast. Temperatures range from 67 to 83 degrees Fahrenheit with a 33% chance of precipitation at 7 PM.
L 67°H 83°
Platteville, WI
7-day forecast
  1. Today
    Jul 4
    Light Drizzle
    43%
    0.02″
    81°67°
  2. Sunday
    Jul 5
    Overcast
    83°67°+2°
  3. Monday
    Jul 6
    Overcast
    78°63°-5°
  4. Tuesday
    Jul 7
    Overcast
    81°59°+3°
  5. Wednesday
    Jul 8
    T-storm w/ Hail
    41%
    81°64°
  6. Thursday
    Jul 9
    Drizzle
    45%
    77°66°-4°
  7. Friday
    Jul 10
    Light Drizzle
    79°63°+2°
Platteville, WI
Anemometer · 24h winds · from true
NESW
From · True
NNE
014° · backing 33°
Direction
NNE
014°
Sustained
1
mph
Gust
6
mph
Peak 24h
14
avg 4
Beaufort · 1 · LIGHT AIR
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 4 · pk 14 @ 10:00a
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 208SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 33° from the nne.
Platteville, WI
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
980.1
-0.8 mb in 3h · falling · 28.94 inHg
Now
980.1
mb
3h
-0.8
mb
12h
+0.6
mb
24h
-0.1
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 980982
975980985990-21h-18h-15h-12h-9h-6h-3h-24hNOW982.4979.6981.4
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Platteville, WI
Air quality
32
AQI
Good
+4 in 6h

AQI 32 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 40 — 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
5.6μg/m³
PM 10Good
7μg/m³
NO₂Good
1μg/m³
OzoneDRIVERModerate
85μg/m³
UV IndexModerate
3.6

What's driving it

Ozone × UV × Sky

Ozone at AQI 40 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.

Present
AQI 40
UV peak
3.2 at earlier today
Sky at peak
overcast
Projected peak
AQI 40

PM × Wind × Precip

PM2.5 at 5.6 µg/m³ (AQI 31) with a 0.81 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.81
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke
Platteville, WI
Sky cover · visibility · 24h
Cloud cover
49%
MOSTLY CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
40.6mi
UNLIMITED
48 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
21:57 UTC · Platteville, 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
21:57 UTC · Platteville, WI · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Platteville, WI
Satellite · infrared · animated
Platteville, WI
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Platteville, WI
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
4:55 AM
Sunrise
12:29 AM
Daylight
15h 14m
Sunset
3:43 PM
Civil dusk
9:19 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Platteville, WI
The moon
Waning Gibbous
78% illuminated
Moonrise
11:00 PM
Moonset
10:05 AM
In sign
♓︎ Pisces
Platteville, WI
Microseason
Jul 1–5

Cicadas claim the afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Platteville at a glance

  • Today vs. normal: 11°F above the seasonal normal for this latitude
  • Last frost: May 2 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 53818

16-Day Forecast — Platteville

  1. Sat81°67°43%
  2. Sun83°67°9%
  3. Mon78°63°2%
  4. Tue81°59°6%
  5. Wed81°64°41%
  6. Thu77°66°45%
  7. Fri79°63°9%
  8. Sat75°59°7%
  9. Sun76°56°9%
  10. Mon75°56°7%
  11. Tue80°58°5%
  12. Wed77°59°23%
  13. Thu81°63°29%
  14. Fri77°66°21%
  15. Sat76°59°19%
  16. Sun74°56°21%

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 — Platteville

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

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWTSTMGeneral Thunderstorms
  • 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.

ZIP codes in Platteville

  • 53818

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.