Weather in Old Greenwich, Connecticut
Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →
Old Greenwich, CT
Sunday, May 17 at 6:02 AM
63
°
Clear
Feels like
60°
Humidity
63%
Wind
6 mph
Sunrise
5:34 AM
Sunset
8:07 PM
Old Greenwich, CT
Hour by hour · 24h
50°
2a
50°
3a
49°
4a
50°
5a
49°
6a
52°
7a
55°
8a
56°
9a
60°
10a
61°
11a
65°
12p
65°
1p
66°
2p
65°
3p
67°
4p
67°
5p
67°
6p
65°
7p
62°
8p
59°
9p
56°
10p
55°
11p
54°
12a
53°
1a
Old Greenwich, CT
7-day forecast
- TodayMay 17Overcast—88°61°
- MondayMay 18Overcast10%72°60°
- TuesdayMay 19Light Drizzle13%93°64°
- WednesdayMay 20Heavy Drizzle81%91°61°
- ThursdayMay 21Overcast29%70°54°
- FridayMay 22Drizzle18%59°49°
- SaturdayMay 23Overcast30%80°52°
Old Greenwich, CT
Next 24 hours · Cool now
Old Greenwich, CT
Anemometer · 24h winds · from true
From · True
SW
216° · veering 18°
Direction
SW
216°
Sustained
6
mph
Gust
12
mph
Peak 24h
27
avg 8
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
−24h−18h−12h−6hnow
Old Greenwich, CT
Air quality
53
AQI
Moderate
- PM 2.5
- 11.1 μg/m³
- PM 10
- 11.7 μg/m³
- NO₂
- 12.8 μg/m³
- Ozone
- 95.0 μg/m³
- UV Index
- 0.0 Low
Old Greenwich, CT
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:04 AM
Sunrise
5:34 AM
Daylight
14h 33m
Sunset
8:07 PM
Civil dusk
12:39 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Old Greenwich, CT
The moon
New Moon
0% illuminated
- Moonrise
- 9:38 AM
- Moonset
- 12:33 AM
- In sign
- ♊︎ Gemini
Old Greenwich, CT
Microseason · 28 of 72
May 16–20
Roses open along the stoops
plant
Old Greenwich at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: April 22 (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.