Weather in Central Islip, NY
Central Islip, Saturday, 17 October, 06:13
Light rain. Feels like 49°. High 59°, low 41°.
Monthly outlook for Central Islip, NY: average high 58.5°, average low 46.4°. That is 0.3° below the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 26 October (66.2°), the coolest 18 October (36.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 59.8° | 60° | -0.1° |
| 27 October – 5 November | 56.5° | 57.3° | -0.5° |
| 6 November – 15 November | at normal | 53.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Brentwood (3 mi).
0
Central Islip, Sunday, 18 October
Clear. High 54°, low 37°.
0Central Islip, Monday, 19 October
Clear. High 59°, low 44°.
0
Central Islip, Tuesday, 20 October
Partly cloudy. High 62°, low 51°.
0
Central Islip, Wednesday, 21 October
Mostly clear. High 56°, low 48°.
0Central Islip, Thursday, 22 October
Clear. High 60°, low 46°.
0Central Islip, Friday, 23 October
Clear. High 61°, low 51°.
0Central Islip, Saturday, 24 October
Clear. High 58°, low 49°.
0Central Islip, Sunday, 25 October
Partly cloudy. High 63°, low 47°.
0Central Islip, Monday, 26 October
Partly cloudy. High 66°, low 52°.
0
Central Islip, Tuesday, 27 October
Overcast. High 63°, low 46°.
0Central Islip, Wednesday, 28 October
Clear. High 52°, low 41°.
0.13Central Islip, Thursday, 29 October
Light rain. High 57°, low 50°.
0.01Central Islip, Friday, 30 October
Light rain. High 54°, low 45°.
0Central Islip, Saturday, 31 October
Mostly clear. High 53°, low 44°.
0Central Islip, Sunday, 1 November
Overcast. High 60°, low 49°.
0.08Central Islip, Monday, 2 November
Climate normal for this date — 60-year average.
0.11Central Islip, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.06Central Islip, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Central Islip, Thursday, 5 November
Climate normal for this date — 60-year average.
0.11
Central Islip, Friday, 6 November
Climate normal for this date — 60-year average.
0.1Central Islip, Saturday, 7 November
Climate normal for this date — 60-year average.
0.16Central Islip, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Central Islip, Monday, 9 November
Climate normal for this date — 60-year average.
0.18Central Islip, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.15Central Islip, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.17Central Islip, Thursday, 12 November
Climate normal for this date — 60-year average.
0.23Central Islip, Friday, 13 November
Climate normal for this date — 60-year average.
0.11Central Islip, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11Central Islip, Sunday, 15 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Central Islip, NY are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Central Islip, NY since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
45°Weather in Annapolis, MD57°Weather in Atlanta, GA
50°Weather in Augusta, ME43°Weather in Austin, TX
52°Weather in Baton Rouge, LA56°Weather in Bismarck, ND41°Weather in Boise, ID54°Weather in Boston, MA51°Weather in Carson City, NV44°Weather in Charleston, WV49°Weather in Charlotte Amalie, VI81°Weather in Cheyenne, WY34°Weather in Columbia, SC61°Weather in Columbus, OH44°Weather in Concord, NH45°Weather in Denver, CO44°Weather in Des Moines, IA36°Weather in Dover, DE54°Weather in Frankfort, KY48°Weather in Harrisburg, PA52°Weather in Hartford, CT50°Weather in Helena, MT39°Weather in Honolulu, HI76°Weather in Indianapolis, IN41°Weather in Jackson, MS52°Weather in Jefferson City, MO42°Weather in Juneau, AK37°Weather in Lansing, MI34°Weather in Lincoln, NE35°Weather in Little Rock, AR49°Weather in Madison, WI32°Weather in Montgomery, AL54°Weather in Montpelier, VT40°Weather in Nashville, TN53°Weather in Oklahoma City, OK41°Weather in Olympia, WA57°Weather in Phoenix, AZ72°Weather in Pierre, SD37°Weather in Providence, RI50°Weather in Raleigh, NC58°Weather in Richmond, VA57°Weather in Sacramento, CA60°Weather in Salem, OR53°Weather in Salt Lake City, UT51°Weather in San Juan, PR78°Weather in Santa Fe, NM32°Weather in Springfield, IL40°Weather in St. Paul, MN36°Weather in Tallahassee, FL65°Weather in Topeka, KS36°Weather in Trenton, NJ51°Weather in Washington, DC56°40°Weather in Manorkill, NY39°Weather in Maple Beach, NY40°Weather in Maple Hill, NY48°Weather in Maple Point, NY39°Weather in Maple Shade, NY45°Weather in Maple Springs, NY39°Weather in Maple Valley, NY37°Weather in Maple View, NY43°Weather in Maplecrest, NY39°Weather in Maplehurst, NY36°Weather in Maples, NY38°Weather in Mapleton, NY41°Weather in Mapletown, NY40°Weather in Marcellus Falls, NY41°Weather in Marengo, NY42°Weather in Mariandale, NY51°Weather in Mariaville, NY40°Weather in Marietta, NY41°Weather in Markhams, NY41°