Dangerous heat continues before storm chances slowly return late this week | Sep. 2, 2026

TODAY

Another very hot and humid day is ahead across central Indiana. Expect mostly sunny skies with highs climbing into the middle 90s. Southwest winds increase to around 5–10 mph during the morning, with occasional afternoon gusts around 15–20 mph. The combination of heat and humidity will push heat index values to around 100 to 105 degrees during the afternoon. A Heat Advisory remains in effect, so anyone spending extended time outdoors should take frequent breaks and stay hydrated.

TONIGHT

Mostly clear, warm and muggy conditions continue. Temperatures only fall into the middle 70s with southwest winds around 5 mph. No meaningful rain is expected, providing little overnight relief from the heat.

TOMORROW

Thursday looks like another exceptionally hot day and may rival Wednesday for the hottest conditions of the week. Expect mostly sunny skies with highs in the middle to upper 90s. West to southwest winds remain around 5–10 mph. Heat index values once again climb to around 100 to 105 degrees, and the Heat Advisory continues through the evening. Most of the daytime hours should stay dry.

TOMORROW NIGHT

Clouds gradually increase with a rare showers or thunderstorm possible but unlikely as a disturbance approaches. Temperatures only fall into the middle 70s with light southerly winds around 5 mph. Storm coverage remains uncertain, and many locations may stay dry.

FRIDAY

The heat begins easing slightly, although it will still feel very much like summer. A few showers may be around early before skies become partly to mostly sunny during the afternoon. Highs reach the lower 90s with west winds around 5 mph. Humidity remains elevated, but heat index values should be somewhat lower than Wednesday and Thursday.

FRIDAY NIGHT

Partly cloudy and warm with scattered showers and thunderstorms becoming possible again late at night. Lows settle into the lower 70s with nearly calm winds. Rain coverage remains uncertain, but chances increase toward Saturday morning.

SATURDAY

The pattern becomes more unsettled as the strong ridge responsible for the heat begins weakening. Expect a mixture of sun and clouds with scattered showers and thunderstorms possible at times. It should not rain continuously, and there will likely be plenty of dry hours between storms. Highs ease to around 90 degrees with northwest winds around 5 mph.

SATURDAY NIGHT

A few showers or thunderstorms may linger into the evening before gradually decreasing overnight. Temperatures fall into the upper 60s with light east winds around 5 mph. Humidity remains elevated, but somewhat cooler air begins working into central Indiana.

7 DAY OUTLOOK

The most impactful portion of the forecast comes Wednesday and Thursday as the prolonged heat wave reaches its peak. Highs remain in the middle to upper 90s, and high humidity could push afternoon heat index values into the 100-to-105-degree range. Warm nighttime temperatures in the middle 70s will also provide very little relief.

The weather pattern begins changing Thursday night as the strong ridge gradually weakens. Scattered shower and thunderstorm opportunities return Thursday night and continue periodically Friday and Saturday. Confidence in exact storm timing remains relatively low, and widespread all-day rainfall is not expected. An isolated stronger storm may be possible Thursday night, but there is not currently a clear signal for a widespread severe-weather event across central Indiana.

Temperatures gradually become much more manageable over the weekend. Highs fall toward around 90 Saturday, then into the middle 80s Sunday and lower to middle 80s for Labor Day and Tuesday. Small rain chances may linger at times through the weekend before a quieter and more seasonable pattern becomes increasingly likely early next week.

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