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Michigan City, Indiana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Michigan City IN
National Weather Service Forecast for: Michigan City IN
Issued by: National Weather Service Northern Indiana
Updated: 3:01 pm CDT Jun 26, 2025
 
This
Afternoon
This Afternoon: Scattered showers and thunderstorms.  Mostly sunny, with a high near 89. Southwest wind around 5 mph.  Chance of precipitation is 30%.
Scattered
T-storms
Tonight

Tonight: Isolated showers and thunderstorms before 3am.  Partly cloudy, with a low around 74. South wind around 5 mph.  Chance of precipitation is 20%.
Isolated
T-storms
Friday

Friday: Scattered showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 86. South wind around 10 mph becoming west in the afternoon.  Chance of precipitation is 30%.
Scattered
T-storms
Friday
Night
Friday Night: Isolated showers and thunderstorms before 8pm.  Mostly cloudy, with a low around 69. North wind around 5 mph.  Chance of precipitation is 20%.
Isolated
T-storms then
Mostly Cloudy
Saturday

Saturday: Mostly sunny, with a high near 80. North wind around 5 mph.
Mostly Sunny

Saturday
Night
Saturday Night: Mostly clear, with a low around 70.
Mostly Clear

Sunday

Sunday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 89.
Sunny then
Slight Chance
T-storms
Sunday
Night
Sunday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 72.
Chance
T-storms
Monday

Monday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 84.
Chance
T-storms
Hi 89 °F Lo 74 °F Hi 86 °F Lo 69 °F Hi 80 °F Lo 70 °F Hi 89 °F Lo 72 °F Hi 84 °F

Hazardous Weather Outlook
Heat Advisory
 

This Afternoon
 
Scattered showers and thunderstorms. Mostly sunny, with a high near 89. Southwest wind around 5 mph. Chance of precipitation is 30%.
Tonight
 
Isolated showers and thunderstorms before 3am. Partly cloudy, with a low around 74. South wind around 5 mph. Chance of precipitation is 20%.
Friday
 
Scattered showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 86. South wind around 10 mph becoming west in the afternoon. Chance of precipitation is 30%.
Friday Night
 
Isolated showers and thunderstorms before 8pm. Mostly cloudy, with a low around 69. North wind around 5 mph. Chance of precipitation is 20%.
Saturday
 
Mostly sunny, with a high near 80. North wind around 5 mph.
Saturday Night
 
Mostly clear, with a low around 70.
Sunday
 
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89.
Sunday Night
 
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Monday
 
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Monday Night
 
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70.
Tuesday
 
Sunny, with a high near 82.
Tuesday Night
 
Mostly clear, with a low around 68.
Wednesday
 
Sunny, with a high near 82.

 

Forecast from NOAA-NWS for Michigan City IN.

Weather Forecast Discussion
796
FXUS63 KIWX 261755
AFDIWX

Area Forecast Discussion
National Weather Service Northern Indiana
155 PM EDT Thu Jun 26 2025

.KEY MESSAGES...

- Hot and humid conditions continue today resulting in a High
  heat risk.

- Marginal Risk of severe thunderstorms through this evening
  with strong gusty winds and excessive rainfall the main
  threats.

- Slightly more mild temperatures on Saturday before a brief
  warm up again on Sunday and Monday.

&&

.DISCUSSION...
Issued at 151 PM EDT Thu Jun 26 2025

Another hot and humid day with highs topping out around 90
degrees and heat indicies near 100 after you combine in the
humidity. Sensitive populations should continue to take extra
precautions against the heat. Moderate to strong instability
and PWAT around 1.6in will promote convection through the rest
of the afternoon, as we have already begun to see late morning
and early afternoon across the Michiana region. Weak overall
shear will inhibit sustained updrafts, and storms should be
pulse-like with strong gusty outflow winds being the predominant
threat (in addition to lightning and localized heavy rain, of
course).

A cold front will eventually work its way into the area on
Friday. Additional showers and storms will be expected (60-70%
chance) as this front moves through the area. By Saturday,
temperatures will have "cooled" down slightly into the low-mid
80s. Rain chances favor the southern half of our forecast area
on Sat.

Warmer temperatures return Sunday and Monday. However, surface
high pressure building over the Central Plains and troughiness
returning to Ontario/Great Lakes region which will cool us down
a little bit for the first couple of July days. Hopefully the
return of dewpoints back in the 60s vs the 70s we`ve been
experiencing will be a welcome relief.

&&

.AVIATION /18Z TAFS THROUGH 18Z FRIDAY/...
Issued at 133 PM EDT Thu Jun 26 2025

Tstms have fired across southern MI between the I94 and I80
corridors while more widely sctd across nrn IN.This trend is
expected to continue through the rest of the aftn and evening
period, so will emphasize the SBN terminal site for convection
through 00Z. Thus far, the storms have remained below svr
criteria as they are pulse in nature. The flow is predominately
SW for both sites and will carry this into the night hours then
winds turn more southerly overnight at KSBN. The heat and
elevated humidity levels continue Friday and coupled with the
upper ridging weakening, expect a continuation of tstm
development with daytime heating.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...Heat Advisory until 8 PM EDT /7 PM CDT/ this evening for
     INZ005>009-012>015-017-018-020-022>027-032>034-103-104-
     116-203-204-216.
OH...Heat Advisory until 8 PM EDT this evening for OHZ001-002-004-
     005-015-016-024-025.
MI...Heat Advisory until 8 PM EDT this evening for MIZ078>081-177-
     277.
MARINE...None.

&&

$$

DISCUSSION...Norman
AVIATION...Frazier
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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