Dangerous Heat and Humidity Building from the Plains to the East Coast

A strengthening ridge of high pressure will produce much above average temperatures from the Plains to the East Coast, a true summer heat wave. Highs in the 90s and triple digits combined w/ humidity and dewpoints surging into the upper 70s, if not low 80s, will create heat indices as high as 110 to 115 through this weekend. Air quality will likely be poor due to haze and little air circulation.
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Chicago, IL Local Forecast Office

6NM ESE Chicago IL

Marine Point Forecast

[NOTICE]
  • Today

    Thunderstorms

    ESE 15kt
    1-2ft

    High: 84 °F
    Water: 73 °F

  • Tonight

    Slight Chc Thunderstorms

    SSW 15kt
    1-2ft

    Low: 80 °F

  • Friday

    Slight Chc Thunderstorms

    SW 15kt
    1ft

    High: 91 °F

  • Friday
    Night

    Slight Chc Thunderstorms

    SW 15kt
    1ft

    Low: 77 °F

  • Saturday

    Chance Thunderstorms

    SW 10kt
    1ft

    High: 95 °F

  • Saturday
    Night

    Chance Thunderstorms

    N 10kt
    1ft

    Low: 71 °F

  • Sunday

    Chance Thunderstorms

    NE 10kt
    1ft

    High: 78 °F

  • Sunday
    Night

    Chance Thunderstorms

    NNE 10kt
    1-2ft

    Low: 68 °F

  • Monday

    Mostly Sunny

    NE 10kt
    2ft

    High: 77 °F


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 6:15 am CDT Jul 18, 2019
Forecast Valid: 8am CDT Jul 18, 2019-6pm CDT Jul 24, 2019

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Detailed Forecast

Today
S wind 10 to 15 kt becoming ESE in the morning. Winds could gust as high as 20 kt. Showers and thunderstorms, mainly before 2pm. Waves 1 to 2 ft.
Tonight
SSW wind 10 to 15 kt, with gusts as high as 20 kt. A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 2am. Waves 1 to 2 ft.
Friday
SW wind 10 to 15 kt. A slight chance of showers and thunderstorms before 8am. Waves around 1 ft.
Friday Night
SW wind 10 to 15 kt. A slight chance of showers and thunderstorms after 2am. Waves around 1 ft.
Saturday
SW wind around 10 kt, with gusts as high as 20 kt. A slight chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Waves around 1 ft.
Saturday Night
N wind 5 to 10 kt becoming NE after midnight. A chance of showers and thunderstorms. Waves around 1 ft.
Sunday
NE wind 5 to 10 kt, with gusts as high as 15 kt. A chance of showers and thunderstorms. Waves around 1 ft.
Sunday Night
NNE wind 5 to 10 kt, with gusts as high as 20 kt. A chance of showers and thunderstorms. Waves 1 to 2 ft.
Monday
NE wind around 10 kt, with gusts as high as 15 kt. Mostly sunny. Waves around 2 ft.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 41.81°N 87.56°W
Last Update: 6:15 am CDT Jul 18, 2019
Forecast Valid: 8am CDT Jul 18, 2019-6pm CDT Jul 24, 2019
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