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South Bethlehem, Pennsylvania Weather

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

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

South Bethlehem, PA
Saturday, July 4 at 7:17 PM
76
°
Overcast
Feels like
81°
Humidity
82%
Wind
5 mph
Sunrise
1:50 AM
Sunset
4:52 PM
South Bethlehem, PA
Hour by hour · 24h
24-Hour ForecastSouth Bethlehem, PA: 24-hour forecast. Temperatures range from 66 to 86 degrees Fahrenheit with a 75% chance of precipitation at 7 PM.
L 66°H 86°
South Bethlehem, PA
7-day forecast
  1. Today
    Jul 4
    Showers
    75%
    0.28″
    89°66°
  2. Sunday
    Jul 5
    Light Drizzle
    37%
    0.02″
    86°66°-3°
  3. Monday
    Jul 6
    Thunderstorm
    83%
    1.2″
    77°68°-9°
  4. Tuesday
    Jul 7
    Thunderstorm
    56%
    0.02″
    75°64°-2°
  5. Wednesday
    Jul 8
    Heavy Drizzle
    16%
    0.01″
    81°65°+6°
  6. Thursday
    Jul 9
    Light Drizzle
    26%
    82°61°+1°
  7. Friday
    Jul 10
    Drizzle
    70%
    0.20″
    75°66°-7°
South Bethlehem, PA
Anemometer · 24h winds · from true
NESW
From · True
S
185° · backing 51°
Direction
S
185°
Sustained
5
mph
Gust
9
mph
Peak 24h
22
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 22 @ 9:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 236SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 51° from the s.
South Bethlehem, PA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
974.8
-0.5 mb in 3h · steady · 28.79 inHg
Now
974.8
mb
3h
-0.5
mb
12h
-1.8
mb
24h
-1.8
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 974979
970975980985-21h-18h-15h-12h-9h-6h-3h-24hNOW979.2974.4974.9
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
South Bethlehem, PA
Air quality
89
AQI
Moderate
+46 in 6h

AQI 89 (Moderate), driven by Ozone. AQI up 46 in the last 6 hours — air quality is degrading. Ozone at AQI 42. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.

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

PM 2.5Good
5.5μg/m³
PM 10Good
6μg/m³
NO₂Good
3μg/m³
OzoneDRIVERModerate
88μg/m³
UV IndexLow
0.1

What's driving it

Ozone × UV × Sky

Ozone at AQI 42. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.

Present
AQI 42
UV peak
0.1 at 1 PM
Sky at peak
overcast
Projected peak
AQI 5

PM × Wind × Precip

PM scrubbed by 2 hours of recent rain — PM2.5 down to 5.5 µg/m³, PM10 to 5.7 µg/m³.

PM2.5/PM10
0.96
Wind
light
Recent rain
2h in last 6h
Pattern
washed out
South Bethlehem, PA
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow

Visibility
35.7mi
UNLIMITED
68 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
23:17 UTC · South Bethlehem, PA · 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
23:17 UTC · South Bethlehem, PA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
South Bethlehem, PA
Satellite · infrared · animated
South Bethlehem, PA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
South Bethlehem, PA
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:18 AM
Sunrise
1:50 AM
Daylight
15h 02m
Sunset
4:52 PM
Civil dusk
9:27 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
South Bethlehem, PA
The moon
Waning Gibbous
78% illuminated
Moonrise
11:12 PM
Moonset
10:20 AM
In sign
♓︎ Pisces
South Bethlehem, PA
Microseason
Jul 1–5

Cicadas claim the afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

South Bethlehem at a glance

  • Today vs. normal: 5°F above the seasonal normal for this latitude
  • Last frost: April 22 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

16-Day Forecast — South Bethlehem

  1. Sat89°66°75%
  2. Sun86°66°37%
  3. Mon77°68°83%
  4. Tue75°64°56%
  5. Wed81°65°16%
  6. Thu82°61°26%
  7. Fri75°66°70%
  8. Sat75°62°39%
  9. Sun75°56°22%
  10. Mon73°54°32%
  11. Tue76°54°24%
  12. Wed79°55°35%
  13. Thu80°57°30%
  14. Fri78°59°41%
  15. Sat82°66°36%
  16. Sun74°67°39%

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 — South Bethlehem

SPC has placed South Bethlehem in the Slight Risk category for severe thunderstorms today.

  • TODAYSLGTSlight Risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.

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 South Bethlehem

  • 16242

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.