Weather in Bethlehem, Pennsylvania
Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →
Bethlehem, PA
Sunday, May 17 at 1:34 AM
72
°
Overcast
Feels like
68°
Humidity
49%
Wind
10 mph
Sunrise
5:43 AM
Sunset
8:12 PM
Bethlehem, PA
Hour by hour · 24h
52°
9p
52°
10p
50°
11p
50°
12a
49°
1a
50°
2a
49°
3a
49°
4a
48°
5a
49°
6a
50°
7a
51°
8a
53°
9a
54°
10a
56°
11a
59°
12p
63°
1p
63°
2p
66°
3p
66°
4p
65°
5p
66°
6p
66°
7p
62°
8p
Bethlehem, PA
7-day forecast
- TodayMay 16Overcast—82°45°
- SundayMay 17Overcast11%88°62°
- MondayMay 18Heavy Drizzle11%88°68°
- TuesdayMay 19Light Drizzle11%89°66°
- WednesdayMay 20Light Showers74%85°56°
- ThursdayMay 21Overcast28%70°48°
- FridayMay 22Drizzle29%58°47°
Bethlehem, PA
Next 24 hours · Cool now
Bethlehem, PA
Anemometer · 24h winds · from true
From · True
S
186° · veering 164°
Direction
S
186°
Sustained
10
mph
Gust
16
mph
Peak 24h
22
avg 6
Beaufort · 3 · GENTLE 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
−24h−18h−12h−6hnow
Bethlehem, PA
Air quality
86
AQI
Moderate
- PM 2.5
- 8.7 μg/m³
- PM 10
- 9.0 μg/m³
- NO₂
- 7.0 μg/m³
- Ozone
- 118.0 μg/m³
- UV Index
- 0.0 Low
Bethlehem, PA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:14 AM
Sunrise
5:43 AM
Daylight
14h 29m
Sunset
8:12 PM
Civil dusk
12:44 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Bethlehem, PA
The moon
New Moon
0% illuminated
- Moonrise
- 9:47 AM
- Moonset
- 12:40 AM
- In sign
- ♉︎ Taurus
Bethlehem, PA
Microseason · 28 of 72
May 16–20
Roses open along the stoops
plant
Bethlehem at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: April 20 (climatological average for this latitude)
- Microseason: 28 of 72, May 16–20
- Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.
Right now in the garden
Warm-season window is open
As of May 17, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.