Highs Tuesday reached 72-80 after 69-76 Monday & 68-75 Sunday.
We have sunshine in the northwest, but it is cloudy as you go southeastward & eastward & showers (& drizzle) are occurring in the southeast part of the area. Showers are occurring along & southeast of a Peru to Logansport to Flora to Crawfordsville line. They are moving east-northeastward.
Temperatures vary from 75 in the far northwest in the sun to 61 in the southeast in the rain as of 11:40 a.m. It is 67 at the Purdue Airport & our WLFI ob site.
For the rest of the day, the more widespread scattered shower & drizzle action gradually pulls away, but a few showers & storms will occur up in the heating as some sunshine increases a bit south & eastward in the area. Highs today should reach 67-80 (warmest northwest). Greater Lafayette it a bit tricky. If we can break these low clouds up, we will warm into the upper 70s, otherwise it will be cooler than that if these lower clouds are stubborn & lock in.
A couple showers & storm are possible tonight with variable clouds, followed by areas of dense fog developing. Lows of 58-64 (63 Greater Lafayette) are expected.
After morning fog, we should see sunshine mixed with clouds Thursday. Numerous showers & storms will develop over the southeastern half of Indiana, while we will see a few bubble up here & there (30%).
It will be warmer & humid. Highs of 81-86 (85 Greater Lafayette) are expected with a very light wind, adding to the increasing discomfort.
Intense heat wave will move from the western U.S. to the Northern Plains to a large area from the Dakotas to New England by the weekend.
Widespread 90s to 100 are expected by next week with many record high temperatures from Minnesota to the Northeast & over Ontario.
Highs may reach 90s to 100 even here potentially with intense upper ridge.
The majority of the rainfall will be with tropical downpours in the southern U.S. & Plains & then the severe weather in the "Ring of Fire from Montana through the Canadian Prairies & far northern tier of the U.S. to Ontario & far northern New England.
This looks like the worst heat wave for this Dakotas to New England region in early June since 2012. The same applies here as it looks like the hottest weather & longest bout of 90s so early in the season since 2012.
Some random storms are possible daily next week in the boiling instability, otherwise it looks hot, dry & humid with heat indices to the 100s daily.
At the end of next week, a surface cold front will arrive as the ridge contracts in response to upper trough diving into the Northern Plains. We may also have a tropical entity from the Gulf of Mexico fuse with it. This could enhance the rainfall, leading to locally-heavy totals. This would be beneficial to the area as crops grow rapidly in the heat & the demand for water will be high.
The strong wind fields for organized severe weather event or outbreak will be displaced well north of the viewing area. However, boiling instability in the heat & convergence along the front may lead to pulsey round of multi-cell storms that congeal into a bit of a line. A couple severe gusts may belch out of a few storms.
Relief of the intense heat will then arrive with highs in the 80s with lower humidity.
However, the heat should return with time & it looks boiling hot prior to an upper trough & cold frontal passage around June 20. This could bring more widespread severe weather with line of severe storms potentially.
After brief cooler & less humid stint, intense heat & humidity return for very late June & into July.
June will need to be monitored closely for several periods of conditions conducive to tropical development in the Caribbean to Gulf of Mexico.