textproduct: Indianapolis

KEY MESSAGES

- Dry throughout the next week with most days at near to above normal temperatures under the influence of high pressure

- Fire weather conditions will require monitoring as several afternoons will likely feature minimum RH values well down into the 30s if not lower at times

DISCUSSION (This evening through Saturday)

Issued at 216 PM EDT Sat Oct 3 2026

Quiet weather will continue across central Indiana through the first half of next weekend. For much of the period, the area will be under northwest flow aloft with high pressure in control of the surface.

A couple of cold fronts will move through during the next week. The first will be on Sunday. Forcing from the associated short wave will be well north of the area, and there will be no moisture for the front to work with as the Gulf will be cut off. Another front will move through mid to late week next week, and it too will have no moisture.

High temperatures will remain near to above normal for most of the next week. The exception will be Monday, which will be cooler with the passage of the first cold front. While that second front will move through later in the week, most guidance keeps cooler air out of the area.

With the cooler air Monday night, some locations will dip into the upper 30s. Cannot rule out some patchy frost in favored cold spots, especially northeast.

The only other concern this week will be afternoon humidity values around 30 percent for some areas. With a drying ground, this could cause some increase in fire weather concerns. Will have to watch for the potential for even lower humidity, as blended guidance can miss lower dewpoints from better mixing. Winds at least do not look to add to any concern.

AVIATION (00Z TAF Issuance)

Issued at 548 PM EDT Sat Oct 3 2026

Impacts:

- None

Discussion:

High pressure will remain largely in control throughout most of the forecast period. Scattered cirrus will drift across the area tonight but should depart prior to daybreak. Not expecting any fog impacts at the outlying terminals on Sunday morning with dry airmass present through the boundary layer.

A weakening cold front will pass through the region Sunday afternoon but with limited moisture...it will just bring a subtle increase in clouds and a noted shift to northwest winds around 10kts. Skies will then clear Sunday evening as high pressure reestablishes.

IND WATCHES/WARNINGS/ADVISORIES

None.