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Deerfield, IN Weather Forecast

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Clear

76°F

Updated	1:30 am
Feels Like	69°F
Humidity	81%
Wind	SSW 7 mph
Barometer	30.13 in
Dew Point	70°F

Clear

24°C

Updated	1:30 am
Feels Like	21°C
Humidity	81%
Wind	SSW 11 km/h
Barometer	102 kPa
Dew Point	21°C

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Cloud Cover	5%
uv UV Index	8
Sunrise	7:15 AM
Sunset	7:58 PM
Moonrise	5:24 AM
Moonset	7:16 PM

Civil Twilight
6:45 AM to 7:12 AM
7:59 PM to 8:26 PM
Deerfield IN Weather - Waning Crescent Moon

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Deerfield Weather Forecast

REST OF TONIGHT	WEDNESDAY	WEDNESDAY NIGHT	THURSDAY	THURSDAY NIGHT	FRIDAY	FRIDAY NIGHT	SATURDAY	SATURDAY NIGHT	SUNDAY	SUNDAY NIGHT	MONDAY

Mostly Clear	Chance of T-Storm	Chance of T-Storm	Chance of T-Storm	Clearing	Partly Cloudy	Partly Cloudy	Chance of T-Storm	Chance of T-Storm	Chance of T-Storm	Chance of Showers	Chance of T-Storm
Lo: 70°FLo: 21°C	Hi: 89°FHi: 32°C	Lo: 69°FLo: 21°C	Hi: 75°FHi: 24°C	Lo: 59°FLo: 15°C	Hi: 79°FHi: 26°C	Lo: 61°FLo: 16°C	Hi: 81°FHi: 27°C	Lo: 65°FLo: 18°C	Hi: 81°FHi: 27°C	Lo: 61°FLo: 16°C	Hi: 85°FHi: 29°C
	POP: 50%	POP: 70%	POP: 60%				POP: 40%	POP: 40%	POP: 20%	POP: 20%	POP: 20%

POP = Probability of Precipitation.

Weather Outlook Updated: 1208 AM EDT Wed Sep 09 2026 Deerfield, IN Weather - WeatherWorld.com

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Issued: 100 AM EDT Wed Sep 9 2026

Key Messages

Heat returns today and Wednesday with peak heat indices in the upper 90s and low 100s Wednesday afternoon
Strong thunderstorms possible late Wednesday; rain and storms continue Wednesday night into Thursday with heavy rain and localized flooding as the primary concern
Cooler weather returns late week, warming up during the weekend.

Discussion

(This evening through Tuesday)... Issued at 303 PM EDT Tue Sep 8 2026

Upper-level ridging over the Plains is flattening and moving eastward as a p...

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Weather 101: Term of the Day

1) Maryland - U.S. state. 2) Mesoscale Discussion- When conditions actually begin to shape up for severe weather, SPC (Storm Prediction Center) often issues a Mesoscale Discussion statement anywhere from roughly half an hour to several hours before issuing a weather watch. SPC also puts out MCDs for hazardous winter weather events on the mesoscale, such as locally heavy snow, blizzards and freezing rain (see below). MCDs are also issued on occasion for heavy rainfall, convective trends, and other phenomena, when the forecaster feels he/she can provide useful information that is not readily available or apparent to field forecasters. MCDs are based on mesoscale analysis and interpretation of observations and of short term, high resolution numerical model output. The MCD basically describes what is currently happening, what is expected in the next few hours, the meteorological reasoning for the forecast, and when/where SPC plans to issue the watch (if dealing with severe thunderstorm potential). Severe thunderstorm MCDs can help you get a little extra lead time on the weather and allow you to begin gearing up operations before a watch is issued. The MCD begins with a numerical string that gives the LAT/LON coordinates of a polygon that loosely describes the area being discussed.