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7 days of high humidity starts Thursday:

- While it will be humid today (and hot, see heat index temps in the 2nd image), tomorrow will only be moderately humid. The real humid weather starts on Thursday and may last through next Wednesday with dew points basically in the 70's the entire time on Long Island, and of course there will be periods of showers and thunderstorms with some heavy downpours.

- You all know about the really hot weather on Thursday.

- While Friday and Saturday won't be washouts, there will be some showers/thunderstorms each day, especially late Friday into Friday night. While the timing on Saturday is still uncertain and there could be a morning shower, in the afternoon there may only be some widely scattered thunderstorms with the best chance being for western Long Island and inland areas. It's still 4 days away, so let's see how things look when we get within range of the high-resolutions models.

- No tropical storms or hurricanes are expected in the Atlantic Basin for the next 10 days.


LONG ISLAND FORECAST:

Today: Mostly sunny, hot, and humid with a slight chance of a scattered late afternoon or early evening shower or thunderstorm with highs in the upper 80's to around 90 degrees (heat index in the low 90's), but cooler for the south shore and east end. Wind out of the SSW at 5 to 10 mph in the morning and WSW at 10 to 15 mph in the afternoon.

Tonight: Slight chance of an evening shower or thunderstorm and then mostly clear with lows in the low 70's. Wind becoming out of the NNW at 5 to 10 mph.

Tomorrow: Sunny, hot, and less humid with highs mostly in the upper 80's, but cooler for the south shore and east end. Wind out of the N at 5 to 10 mph in the morning and then out of the S at around 10 mph in the afternoon.

Tomorrow night: Clear skies with increasing humidity with lows mostly in the low 70's. Wind out of the SSW at 5 to 10 mph.

Thursday: Mostly sunny and oppressively hot/humid with highs in the low to mid 90's in Nassau and low 90's in Suffolk with heat index temperatures mostly around 96 to 100 degrees, but a little cooler for the south shore and east end. Wind out of the SSW at 5 to 10 mph in the morning and 10 to 20 mph in the afternoon.

Friday: Partly sunny, hot, and very humid with scattered showers and thunderstorms, especially in the afternoon/evening, with the potential for heavy downpours. Highs in the upper 80's with heat index temperatures in the mid 90's, but cooler for the south shore and east end. Wind out of the SSW at around 10 mph.

Saturday: Partly sunny and very humid with some scattered showers/thunderstorms likely at times with highs in the mid 80's (heat index temperatures around 90 degrees), but a little cooler for the south shore and east end. Wind light and variable in the morning and then out of the S at 10 to 15 mph in the afternoon.

Sunday: Partly to mostly sunny and very humid with a slight chance of a late afternoon or evening thunderstorm with highs in the upper 80's (heat index temperatures in the low 90's), but a little cooler for the south shore and east end. Wind out of the SSW to SW at 5 to 10 mph in the morning and 10 to 15 mph in the afternoon.

- 1st image: My 5 day forecast for Long Island

- 2nd image: Projected heat index temperatures for 3 PM today from the HRRR model

- 3rd image: Projected temperatures with ranges for Long Island for the next 15 days from the Euro ensembles

- 4th image: Projected temperatures for Long Island for the next 10 days from the NWS Model Blend






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