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

South Pottstown, Pennsylvania Weather

Fireflies rise from the lawn. Day 76 of spring. Read this microseason across nine climate regions →

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

South Pottstown, PA
Wednesday, June 3 at 6:49 PM
82
°
Clear
Feels like
81°
Humidity
22%
Wind
7 mph
Sunrise
5:34 AM
Sunset
8:27 PM
South Pottstown, PA
Hour by hour · 24h
24-Hour ForecastSouth Pottstown, PA: 24-hour forecast. Temperatures range from 57 to 87 degrees Fahrenheit.
L 57°H 87°
South Pottstown, PA
7-day forecast
  1. Today
    Jun 3
    Mostly Clear
    83°55°
  2. Thursday
    Jun 4
    Overcast
    89°57°+6°
  3. Friday
    Jun 5
    Overcast
    83°62°-6°
  4. Saturday
    Jun 6
    Light Drizzle
    20%
    84°63°+1°
  5. Sunday
    Jun 7
    Light Showers
    34%
    0.03″
    82°65°-2°
  6. Monday
    Jun 8
    Overcast
    27%
    76°55°-6°
  7. Tuesday
    Jun 9
    Overcast
    13%
    79°50°+3°
South Pottstown, PA
Anemometer · 24h winds · from true
NESW
From · True
NNW
342° · steady
Direction
NNW
342°
Sustained
7
mph
Gust
8
mph
Peak 24h
13
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 13 @ 7:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 146SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
South Pottstown, PA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1017.1
-1.1 mb in 3h · falling · 30.03 inHg
Now
1017.1
mb
3h
-1.1
mb
12h
-0.9
mb
24h
+0.6
mb
Regime · FAIR
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10151019
1010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY-21h-18h-15h-12h-9h-6h-3h-24hNOW1018.81015.31015.9
−24h−18h−12h−6hnow
Fair air starting to ease — a front may be approaching.
South Pottstown, PA
Air quality
39
AQI
Moderate
+11 in 6hPeak ~52 @ 11 PM

Ozone at AQI 55 now. AQI up 11 over the last 6 hours (gradual rise). With UV 7.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 54 by mid-afternoon.

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
OzoneDRIVERUnhealthy SG
110μg/m³
UV IndexVery high
7.3

What's driving it

Ozone × UV × Sky

Ozone at AQI 55 now. With UV 7.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 54 by mid-afternoon.

Present
AQI 55
UV peak
7.3 at 1 PM
Sky at peak
clear
Projected peak
AQI 54

PM × Wind × Precip

PM2.5 at 5.6 µg/m³, PM10 at 7.3 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.77
Wind
light
Recent rain
0h in last 6h
Pattern
background
South Pottstown, PA
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
154.3mi
UNLIMITED
160 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
18:49 UTC ·South Pottstown, PA · NOAA NESDIS / STAR · 21696x21696 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
18:49 UTC ·South Pottstown, PA · NOAA NESDIS / STAR · 5-min cadence · 10000x6000 px
South Pottstown, PA
Satellite · infrared · animated
South Pottstown, PA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
South Pottstown, PA
Almanac · Wednesday, June 3
The higher the clouds, the finer the weather.
Civil dawn
9:03 AM
Sunrise
5:34 AM
Daylight
14h 53m
Sunset
8:27 PM
Civil dusk
1:01 AM
Planting note
Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
South Pottstown, PA
The moon
Waning Gibbous
89% illuminated
Moonrise
2:53 AM
Moonset
11:58 AM
In sign
♑︎ Capricorn
South Pottstown, PA
Microseason
Jun 1–5

Fireflies rise from the lawn

plant
Jan 142% of the yearDec 31

Read this microseason across nine climate regions →

South Pottstown at a glance

  • Today vs. normal: 7°F above the seasonal normal for this latitude
  • Last frost: April 17 (climatological average for this latitude)
  • Microseason: Jun 1–5
  • Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.

Right now in the garden

Peak growing season

As of June 3, 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.

ZIP codes in South Pottstown

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.