Long Island Sound near New London Harbor (IN MLLW)
20 mi- Level
- 4.0 ft
Forecast peak 4.3 ft Sat 9 AM
Reading from Sat 7:30 AM · NWS gauge page
Appearance
Ends in 34 min
Issued for this forecast zone · National Weather Service Upton NY
What
Temperatures in the mid 30s, and locally as low 25 to 30 in parts of the Pine Barrens, will result in frost formation.
Impacts
Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Precautionary actions
Take steps now to protect tender plants from the cold.
Areas: Northeast Suffolk; Southeast Suffolk
See it on weather.gov (opens in a new tab)Observed 7:56 AM EDT at KGON
Sunny and 36°2°.
Today: low 41°5° (likely 41°5° to 49°9°), high 58°14° (likely 56°13° to 58°14°).
Now 36°2°
Sunny · Feels like 31°0°
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 8a | Sunny | 44°7° (likely 42°6° to 49°9°) | 44°7° | 0% | 3 mph5 km/h from N, gusts 9 mph14 km/h | 82% | 42% | 0 |
| Sat 9a | Mostly cloudy | 47°8° (likely 44°7° to 49°9°) | 47°8° | 0% | 3 mph5 km/h from N, gusts 9 mph15 km/h | 74% | 50% | 0 |
| Sat 10a | Partly sunny | 52°11° (likely 47°8° to 52°11°) | 52°11° | 0% | 3 mph5 km/h from N, gusts 9 mph15 km/h | 59% | 46% | 1 |
| Sat 11a | Cloudy | 55°13° (likely 49°9° to 55°13°) | 55°13° | 0% | 3 mph5 km/h from N, gusts 9 mph14 km/h | 51% | 53% | 2 |
| Sat 12p | Cloudy | 58°14° (likely 52°11° to 58°14°) | 58°14° | 0% | 3 mph5 km/h from NW, gusts 8 mph13 km/h | 45% | 60% | 3 |
| Sat 1p | Cloudy | 55°13° (likely 54°12° to 56°13°) | 55°13° | 0% | 5 mph8 km/h from NW, gusts 9 mph14 km/h | 51% | 60% | 3 |
| Sat 2p | Cloudy | 55°13° (likely 55°13° to 57°14°) | 55°13° | 0% | 6 mph10 km/h from W, gusts 10 mph15 km/h | 51% | 58% | 3 |
| Sat 3p | Partly sunny | 56°13° (likely 56°13° to 57°14°) | 56°13° | 0% | 6 mph10 km/h from W, gusts 10 mph17 km/h | 51% | 53% | 2 |
| Sat 4p | Mostly sunny | 56°13° (likely 56°13° to 57°14°) | 56°13° | 0% | 6 mph10 km/h from W, gusts 11 mph17 km/h | 51% | 29% | 1 |
| Sat 5p | Partly sunny | 57°14° (likely 56°13° to 57°14°) | 57°14° | 0% | 6 mph10 km/h from W, gusts 11 mph17 km/h | 49% | 29% | 0 |
| Sat 6p | Clear | 54°12° (likely 53°12° to 57°14°) | 54°12° | 0% | 5 mph8 km/h from W, gusts 10 mph16 km/h | 57% | 36% | 0 |
| Sat 7p | Clear | 53°12° (likely 52°11° to 57°14°) | 53°12° | 0% | 3 mph5 km/h from W, gusts 8 mph13 km/h | 59% | 22% | 0 |
| Sat 8p | Clear | 53°12° (likely 51°11° to 57°14°) | 53°12° | 0% | 2 mph3 km/h from W, gusts 7 mph12 km/h | 64% | 2% | 0 |
| Sat 9p | Clear | 51°11° (likely 51°11° to 57°14°) | 51°11° | 0% | 2 mph3 km/h from W, gusts 7 mph12 km/h | 68% | 0% | 0 |
| Sat 10p | Clear | 50°10° (likely 50°10° to 56°13°) | 50°10° | 0% | 1 mph2 km/h from W, gusts 7 mph12 km/h | 71% | 0% | 0 |
| Sat 11p | Clear | 50°10° (likely 49°9° to 56°13°) | 50°10° | 0% | 1 mph2 km/h from NW, gusts 7 mph11 km/h | 74% | 0% | 0 |
| Sun 12a | Clear | 49°9° (likely 49°9° to 55°13°) | 49°9° | 0% | 1 mph2 km/h from NW, gusts 7 mph11 km/h | 77% | 1% | 0 |
| Sun 1a | Clear | 47°8° (likely 47°8° to 55°13°) | 47°8° | 0% | 1 mph2 km/h from NW, gusts 7 mph12 km/h | 83% | 3% | 0 |
| Sun 2a | Clear | 47°8° (likely 47°8° to 54°12°) | 47°8° | 0% | 2 mph3 km/h from N, gusts 7 mph11 km/h | 83% | 5% | 0 |
| Sun 3a | Clear | 46°8° (likely 46°8° to 54°12°) | 46°8° | 0% | 2 mph3 km/h from N, gusts 7 mph11 km/h | 86% | 7% | 0 |
| Sun 4a | Clear | 45°7° (likely 45°7° to 53°12°) | 45°7° | 0% | 2 mph3 km/h from N, gusts 7 mph11 km/h | 86% | 10% | 0 |
| Sun 5a | Clear | 45°7° (likely 45°7° to 53°12°) | 45°7° | 0% | 2 mph3 km/h from N, gusts 7 mph11 km/h | 86% | 12% | 0 |
| Sun 6a | Clear | 44°7° (likely 44°7° to 52°11°) | 44°7° | 0% | 2 mph3 km/h from N, gusts 6 mph10 km/h | 79% | 13% | 0 |
| Sun 7a | Sunny | 44°7° (likely 44°7° to 51°11°) | 44°7° | 0% | 2 mph3 km/h from N, gusts 6 mph9 km/h | 79% | 13% | 0 |
| Sun 8a | Sunny | 49°9° (likely 44°7° to 51°11°) | 49°9° | 0% | 2 mph3 km/h from N, gusts 6 mph10 km/h | 68% | 12% | 0 |
| Sun 9a | Sunny | 49°9° (likely 47°8° to 52°11°) | 49°9° | 0% | 2 mph3 km/h from NW, gusts 6 mph9 km/h | 68% | 8% | 1 |
| Sun 10a | Sunny | 52°11° (likely 51°11° to 54°12°) | 52°11° | 0% | 2 mph3 km/h from N, gusts 5 mph9 km/h | 61% | 3% | 2 |
| Sun 11a | Sunny | 54°12° (likely 53°12° to 56°13°) | 54°12° | 0% | 2 mph3 km/h from NW, gusts 5 mph8 km/h | 57% | 0% | 3 |
| Sun 12p | Sunny | 55°13° (likely 55°13° to 58°14°) | 55°13° | 0% | 2 mph3 km/h from W, gusts 5 mph8 km/h | 55% | 0% | 4 |
| Sun 1p | Sunny | 56°13° (likely 56°13° to 60°16°) | 56°13° | 0% | 3 mph5 km/h from W, gusts 6 mph9 km/h | 53% | 0% | 4 |
| Sun 2p | Sunny | 58°14° (likely 57°14° to 62°17°) | 58°14° | 0% | 3 mph5 km/h from W, gusts 6 mph10 km/h | 49% | 0% | 4 |
| Sun 3p | Sunny | 58°14° (likely 57°14° to 62°17°) | 58°14° | 0% | 2 mph3 km/h from W, gusts 7 mph11 km/h | 49% | 0% | 3 |
| Sun 4p | Sunny | 58°14° (likely 57°14° to 61°16°) | 58°14° | 0% | 2 mph3 km/h from W, gusts 7 mph11 km/h | 49% | 0% | 2 |
| Sun 5p | Sunny | 59°15° (likely 57°14° to 60°16°) | 59°15° | 0% | 2 mph3 km/h from SW, gusts 7 mph12 km/h | 49% | 0% | 1 |
| Sun 6p | Clear | 58°14° (likely 55°13° to 58°14°) | 58°14° | 0% | 3 mph5 km/h from SW, gusts 8 mph13 km/h | 53% | 0% | 0 |
| Sun 7p | Clear | 56°13° (likely 52°11° to 57°14°) | 56°13° | 0% | 3 mph5 km/h from SW, gusts 10 mph17 km/h | 59% | 0% | 0 |
| Sun 8p | Clear | 56°13° (likely 51°11° to 57°14°) | 56°13° | 0% | 3 mph5 km/h from SW, gusts 12 mph19 km/h | 62% | 0% | 0 |
| Sun 9p | Clear | 55°13° (likely 50°10° to 56°13°) | 55°13° | 0% | 3 mph5 km/h from SW, gusts 12 mph20 km/h | 64% | 0% | 0 |
| Sun 10p | Clear | 54°12° (likely 51°11° to 56°13°) | 54°12° | 0% | 3 mph5 km/h from SW, gusts 12 mph19 km/h | 66% | 0% | 0 |
| Sun 11p | Clear | 54°12° (likely 50°10° to 56°13°) | 54°12° | 0% | 3 mph5 km/h from SW, gusts 11 mph18 km/h | 66% | 0% | 0 |
| Mon 12a | Clear | 54°12° (likely 51°11° to 56°13°) | 54°12° | 0% | 3 mph5 km/h from W, gusts 12 mph19 km/h | 66% | 0% | 0 |
| Mon 1a | Clear | 53°12° (likely 50°10° to 56°13°) | 53°12° | 0% | 5 mph8 km/h from W, gusts 13 mph20 km/h | 69% | 0% | 0 |
| Mon 2a | Clear | 53°12° (likely 50°10° to 57°14°) | 53°12° | 0% | 5 mph8 km/h from W, gusts 14 mph23 km/h | 69% | 1% | 0 |
| Mon 3a | Clear | 52°11° (likely 48°9° to 58°14°) | 52°11° | 0% | 5 mph8 km/h from W, gusts 14 mph23 km/h | 69% | 0% | 0 |
| Mon 4a | Clear | 52°11° (likely 48°9° to 58°14°) | 52°11° | 0% | 6 mph10 km/h from W, gusts 13 mph22 km/h | 69% | 0% | 0 |
| Mon 5a | Clear | 52°11° (likely 47°8° to 57°14°) | 52°11° | 0% | 6 mph10 km/h from W, gusts 13 mph22 km/h | 69% | 0% | 0 |
| Mon 6a | Clear | 51°11° (likely 47°8° to 57°14°) | 51°11° | 0% | 6 mph10 km/h from W, gusts 14 mph23 km/h | 68% | 1% | 0 |
| Mon 7a | Sunny | 51°11° (likely 46°8° to 56°13°) | 51°11° | 0% | 6 mph10 km/h from W, gusts 15 mph23 km/h | 71% | 5% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Today: Partly sunny, with a high near 58. Northwest wind around 6 mph.
Tonight: Mostly clear. Low around 41, with temperatures rising to around 45 overnight. Northwest wind 1 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Day: Sunny, with a high near 60. Northwest wind around 3 mph.
Night: Clear. Low around 43, with temperatures rising to around 52 overnight. Southwest wind around 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny. High near 64, with temperatures falling to around 62 in the afternoon. West wind around 8 mph.
Night: Clear. Low around 49, with temperatures rising to around 51 overnight.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 55.
Night: Mostly clear, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 56.
Night: Partly cloudy, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 61.
Night: Partly cloudy, with a low around 56.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 63.
Night: Partly cloudy, with a low around 53.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
30% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
30% chance
Afternoon
noon–6 PM
20% chance · 0.01 in0.3 mm
Evening
6 PM–midnight
30% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Dry, high 58°, low 41°.
Dry, high 60°, low 43°.
Dry, high 64°, low 49°, warming up.
Mostly dry, highs 55–63°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (OKX) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 4.3 ft Sat 9 AM
Reading from Sat 7:30 AM · NWS gauge page
Forecast peak 3.9 ft Sat 9 AM
Reading from Sat 7:36 AM · NWS gauge page
Reading from Sat 6:54 AM · NWS gauge page
Reading from Sat 7 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 77% less heating than a typical week.
Heating degree days, base 65°F
47, 17 and 5°F are the test points heat pumps are rated at.
Dry air outside (dew point 29°F).
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is 2°1° colder than typical.
East Marion weather by month: normals, records, snow and freeze dates
Sunrise 7:11 AM, sunset 5:55 PM.
Clear 7 PM–6:44 AM, but the moon is 99% lit and up.
Waxing gibbous
96% lit · growing