South Bend, Indiana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for South Bend IN
National Weather Service Forecast for:
South Bend IN
Issued by: National Weather Service Northern Indiana |
Updated: 5:17 pm EDT Jul 2, 2025 |
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Tonight
 Partly Cloudy
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Thursday
 Sunny then Slight Chance T-storms
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Thursday Night
 Slight Chance T-storms then Partly Cloudy
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Independence Day
 Hot
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Friday Night
 Mostly Clear
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Saturday
 Hot
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Saturday Night
 Mostly Clear
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Sunday
 Mostly Sunny then Chance T-storms
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Sunday Night
 Chance T-storms
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Lo 66 °F |
Hi 89 °F |
Lo 69 °F |
Hi 92 °F |
Lo 73 °F |
Hi 94 °F |
Lo 74 °F |
Hi 90 °F |
Lo 68 °F |
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Tonight
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Partly cloudy, with a low around 66. West wind around 5 mph becoming calm in the evening. |
Thursday
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A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Light west wind becoming northwest 5 to 10 mph in the morning. |
Thursday Night
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A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. North wind around 5 mph becoming calm in the evening. |
Independence Day
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Mostly sunny and hot, with a high near 92. Calm wind becoming southwest around 5 mph in the afternoon. |
Friday Night
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Mostly clear, with a low around 73. South wind around 5 mph. |
Saturday
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Sunny and hot, with a high near 94. |
Saturday Night
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Mostly clear, with a low around 74. |
Sunday
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A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. |
Sunday Night
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A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68. |
Monday
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A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 30%. |
Monday Night
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A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64. |
Tuesday
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A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84. |
Tuesday Night
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A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. |
Wednesday
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A chance of showers and thunderstorms. Mostly sunny, with a high near 86. |
Forecast from NOAA-NWS
for South Bend IN.
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Weather Forecast Discussion
912
FXUS63 KIWX 021917 CCA
AFDIWX
Area Forecast Discussion...CORRECTION
National Weather Service Northern Indiana
317 PM EDT Wed Jul 2 2025
.KEY MESSAGES...
- Slight chance (10-20%) for a stray shower or storm Thursday
afternoon.
- Hot and humid Friday into this weekend.
- More appreciable rain and storm chances (40-50%) return Sunday
into Monday.
&&
.DISCUSSION...
Issued at 245 PM EDT Wed Jul 2 2025
A mid level impulse tracking east-southeast through the central
Great Lakes will force a subtle (lake breeze enhanced) sfc trough
into areas mainly along/north of US 30 late this afternoon into this
evening. This feature may be enough to generate a stray shower or
two as cooling aloft potentially breaks cap in place, but nothing
more given the weak forcing and overall dearth of moisture and
instability.
Thursday will feature slight warmer conditions as heights rebound
aloft in wake of this evening`s shortwave. Boundary layer
moisture/instability will also see a bit of an uptick near a
boundary leftover across the Upper Midwest southeast into the lower
Great Lakes. An isolated shower or storm could focus near this
boundary and/or lake breeze during peak heating with PoPs limited in
the 10-20% range given an overall lack of flow/shear/forcing, along
with a tendency for dewpoints to mix out more than modeled for
lesser MLCAPE magnitudes locally.
A warmer, more humid air mass does become better established into
Friday and Saturday as an Intermountain West upper ridge folds east
into the Great Lakes and Ohio Valley. Friday is the transition day
with high temps and PM heat indices dependent on any lingering
convective cloud debris or outflow on the leading edge of the capped
heat dome. Continued to cap PoPs at 10% (silent) with NBM`s highs
near 90 reasonable for now. Higher confidence in Saturday being the
warmest day with PM heat indices in the mid 90s to near 100F under a
mostly sunny sky as low levels moisten within increasing southwest
flow.
Guidance does continue to flatten the ridge into Sunday and Monday
allowing an frontal boundary to drop into the vicinity with
chances for scattered convection.
&&
.AVIATION /18Z TAFS THROUGH 18Z THURSDAY/...
Issued at 122 PM EDT Wed Jul 2 2025
As a shortwave moves through in the flow, increased moist advection
allows low to mid level cloudiness, but ceilings appear to be
high enough to keep VFR conditions prevailing. Southwest winds
continue to stay below 10 kts through the period.
&&
.IWX WATCHES/WARNINGS/ADVISORIES...
IN...None.
OH...None.
MI...None.
MARINE...None.
&&
$$
DISCUSSION...Steinwedel
AVIATION...Roller
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