Summer is arriving in Indiana with heat indices above 100F. Here’s what you need to know.

Summer is coming in hot this weekend — but not before a low pressure system will bring more thunderstorms, rain and possible tornadoes to the Bloomington area. Here’s what you need to know.

When will the thunderstorms arrive in Monroe County?

The National Weather Service has issued a hazardous weather outlook for 39 central Indiana counties including Monroe and all neighboring counties.

The forecast calls for thunderstorms being possible “off and on through Thursday.”

The NWS warned of possible lighting, heavy rainfall and localized flooding. Earl Breon, a meteorologist with the NWS in Indianapolis, said the chance for a tornado in Bloomington is 5%.

How much rain has the Bloomington area received in June so far?

Breon said Bloomington has gotten nearly 4 inches of rain through Monday, which is about 1.4 inches more than normal.

When will the rain stop?

Breon said the wetter weather will stop Thursday night.

When will it get hot in Bloomington?

Summer officially begins late Friday, and summer is arriving with a bang.

Breon said a high pressure system is moving in from the Great Plains and will settle in the area for a bit. The high pressure system will mean hotter and drier conditions.

Temperatures this weekend, starting with Saturday afternoon and going through Monday, will reach the mid-90s, Breon said. The NWS warned of heat indices for central Indiana of up to 105 degrees Fahrenheit.

How unusual is it to see heat this early in summer?

Breon said the Bloomington area normally sees highs around this time of year of the mid-80s, but he said Indiana has seen temperatures that are expected this weekend even earlier in past years.

“It’s not normal, but it’s also not unusual,” he said.

How has the weather affected farmers?

Indiana farmers are a bit behind in planting corn, according to the Purdue University Pest & Crop newsletter. As of early June, Indiana farmers had reached 86% planted, up from 76% a week earlier. Usually Indiana farmers have about 90% of their crop planted in early June. The report also indicated that nearby states, including Ohio, which was at 72% planted, remained behind schedule because of weather delays.

Boris Ladwig can be reached at bladwig@heraldt.com.

This article originally appeared on The Herald-Times: It will get hot in Monroe County this weekend. What you need to now.