textproduct: Indianapolis

KEY MESSAGES

- Skies gradually clearing tonight

- Dry weather through Friday with seasonable temperatures

- Next chance for widespread rain will be late Saturday into Sunday

FORECAST UPDATE

Issued at 914 PM EDT Mon Jun 1 2026

Sprinkles and very light rain continue to drift south through the forecast area this evening as an upper level wave passes through the region. 01Z temperatures varied widely from the mid 60s around the Indy metro courtesy of the light showers to the upper 70s in the lower Wabash Valley.

Despite the dry air present below 800mb sprinkles and light showers have been able to drop trace amounts with a few spots recording a hundredth of an inch. The area of light rain has already shifted south of I-70 and will exit the southern counties around 03Z. Mid clouds remain over the area but anticipate clearing skies into the overnight from the north as drier air filters into the region.

Lows ranging from the mid 50s northeast to around 60 in the lower Wabash Valley are supported well by low level thermals. Zone and grid updates out.

DISCUSSION (This evening through Monday)

Issued at 155 PM EDT Mon Jun 1 2026

Overview.

A tranquil and pleasant start to meteorological summer is underway across central Indiana. The primary takeaway for the week ahead is a prolonged period of dry, comfortable weather with near-average temperatures before widespread rain chances return by the upcoming weekend. A mix of sun and clouds will give way to completely clear skies by tomorrow as high pressure positioned north of the Great Lakes maintains firm control of the regional weather pattern.

Tonight through Tuesday.

As a weak upper-level trough exits the region this evening, any lingering mid-level cloud cover will dissipate during the overnight, giving way to clear skies and quiet conditions towards Tuesday morning. Latest model guidance shows strong atmospheric ridging expanding from the central Plains into western Ontario in the aftermath of the exiting system. This setup will induce subsidence across Indiana, effectively suppressing cloud development and keeping the column incredibly dry.

At the surface, the strong high pressure system situated to our north will continue to advect cool and dry easterly flow into the area. Excellent radiational cooling tonight will allow overnight low temperatures to comfortably drop into the lower to mid-50s. On Tuesday, ample solar insolation will easily counter the cool easterly breeze, bringing afternoon maximum highs to near-seasonal normals in the upper 70s.

Wednesday through Monday.

The extended forecast period features a gradual transition from a highly stable regime to a warmer and eventually unsettled pattern. Dry and sunny conditions will persist through Wednesday as the primary ridge axis shifts overhead, pushing afternoon high temperatures into the lower 80s. By Thursday and Friday, global model ensembles indicate that the upper-level ridging will begin to break down, shifting to a more west-to-east, or zonal, flow aloft. Concurrently, surface high pressure will slide to the southeastern United States, establishing a southerly return flow that will bring a warmer and humid airmass into the Ohio Valley.

While a weak frontal boundary will approach central Indiana from the northwest on Friday afternoon, forecast soundings indicate that precipitation chances remain very low. Strong mid-level capping and an atmospheric temperature inversion will limit available CAPE, keeping conditions mostly dry through Friday evening.

The next opportunity for widespread rainfall and impactful weather arrives on Saturday. Global models continue to struggle with the broader synoptic pattern with differences on how quickly the aforementioned ridge will break down which bring significant uncertainty to the overall forecast. Generally trended the forecast towards a drier solution for Saturday with models likely tampering down the ridge a bit too soon without a strong system behind it. This keeps rain chances fairly low until late Saturday night into early next week.0

AVIATION (00Z TAF Issuance)

Issued at 641 PM EDT Mon Jun 1 2026

Impacts:

- Northeast wind gusts peaking around 20kts on Tuesday

Discussion:

VFR conditions will continue through the forecast period.

Mid and high level clouds associated with an upper level wave remain over the region early this evening. Clouds will diminish from the north overnight as high pressure expands across the Great Lakes. Deep subsidence will advect into the area for Tuesday with mainly clear skies expected. Northeast winds will become gusty at around 20kts late morning through the afternoon.

IND WATCHES/WARNINGS/ADVISORIES

None.