2026 4th of July Heatwave

[Chicago Storm]

ORD topped out at 92° yesterday, with MDW 93°.

[Brian D]

1 hour ago, Brian D said:

The lake is keeping temps subdued. Only in the 60's along the shore. 80's inland. Natural A/C working well. 

Checked lake temps around Two Harbors today. A whopping 39F/4C. Chilly out there still.

[weatherbo]

ngl, I'm hot.  91/77

[Baum]

5 minutes ago, weatherbo said:

ngl, I'm hot.  91/77

Now post a picture of a random snow pile still surviving 

[Brian D]

Wind switched, and temps have risen into the 80's here in town in the last couple hrs. 

[hawkeye_wx]

DVN lowered us to 93 today, but we still came up short and hit 91.

[OrdIowPitMsp]

High of 90 today. 
 

3rd 90 of the year at MSP

[Stebo]

94/75 for DTW yesterday. So far overnight the low is 79 at DTW and 81 at DET.

[A-L-E-K]

Car says 83 lol

[Baum]

Warm, muggy 4th weekend with scattered boomers. As it should be.

[TheClimateChanger]

 

[michsnowfreak]

3 hours ago, Stebo said:

94/75 for DTW yesterday. So far overnight the low is 79 at DTW and 81 at DET.

Low at DTW 78 this morning.

The hot, humid final day of June took the monthly departure from -0.1F to 0.4F at DTW.

June was a very average month in the southern Great Lakes in the mean, with most locations finishing between -0.5F & +0.5F, however the last day added around a half degree departure for most. 

[nwohweather]

Currently 90°/77° at my house. I haven’t seen these readings since moving back from living down South. Impressed

[Torchageddon]

Yesterday I had a late day rally up to 33C but I still wasn't uncomfortable even cycling in the evening. Then the power went out for 5 hours, I was still good. I wake up this morning, I'm not good. It is soup time of 90s by 10am, TWN has me at 35C humidex of 47 coming - if the power goes out again 

[Brian D]

Temps in the 70's right now in town under cloudy skies. Scattered showers in the area. Winds switched to the SW yesterday evening, and are the same today. When the sun peeks out, she'll get warm again. 

[Powerball]

Classic ROF setup the next few days for northern parts of the subs, certainly an upside to the center of the ridge ending up flatter and further SE than originally expected...

[WestMichigan]

6 hours ago, A-L-E-K said:

Car says 83 lol

How does that compare to the bank thermometer?

[Sydney Claridge]

It is quite impressive to see 8 states (IL, IN, OH, KY, plus DE, NJ, CT, and RI) completely covered by Extreme Heat Warnings:



I don't know the last time that I have seen a Midwest heat wave also extend far into the Northeast (especially northern New England) simultaneously like this.

[A-L-E-K]

15 minutes ago, WestMichigan said:

How does that compare to the bank thermometer?

didn't go by the bank early this am

def felt like one of the warmest early mornings i've experienced tho

[Powerball]

https://x.com/i/status/2072348771464155192

[EC609]

45 minutes ago, Sydney Claridge said:

It is quite impressive to see 8 states (IL, IN, OH, KY, plus DE, NJ, CT, and RI) completely covered by Extreme Heat Warnings:



I don't know the last time that I have seen a Midwest heat wave also extend far into the Northeast (especially northern New England) simultaneously like this.

Yep. add in more states tomorrow. Already 93/75 at IAD today. Forecast is 103 tomorrow.

[A-L-E-K]

13 minutes ago, Powerball said:

https://x.com/i/status/2072348771464155192

never forget and love the water color

nasty invasive species issues aside, the mussels have done incredible things to the water visibility in the great lakes, when conditions are right these days (ie not too much wind kicking up sediment), the clarity really does approach caribbean levels. If you haven't visited in a long while, it's worth checking out. The changes over my life from murky waters and shorelines full of dead alewives to today is wild.

[Brian D]

57 minutes ago, A-L-E-K said:

never forget and love the water color

nasty invasive species issues aside, the mussels have done incredible things to the water visibility in the great lakes, when conditions are right these days (ie not too much wind kicking up sediment), the clarity really does approach caribbean levels. If you haven't visited in a long while, it's worth checking out. The changes over my life from murky waters and shorelines full of dead alewives to today is wild.

And yet that clarity is bad. Mussels cleaning the waters of phytoplankton is harming the fish pops. The little ones depend on the plankton to survive. Just watched a YT vid on this issue. Sad story.

[Chicago Storm]

We’re finally seeing earlier and better mixing locally today.

Monday and yesterday really didn’t start mixing until later afternoon. Today it has been all day, and it looks to be more thorough now, with DP’s bouncing between 66-70° currently.

With that, today should feature the peak high temp of this stretch. Tomorrow would have a shot as well, if not for increased cloud and outflow potential.

[Torchageddon]

YYZ is up to 36C/98F with a humidex of 48.

There is a fast MCS outflow heading towards me, some new gen from that is among the most rapid I've seen. Hourlies of course didn't show much chance earlier for any.

[Chicago Storm]

ORD and MDW both peaked at 94° yesterday.

[Chicago Storm]

SUPER localized scouring out and mixing in parts of the metro area currently.

All sites are carrying a 70+ DP, except for ORD and UGN, which have been running in the low to upper 60's. ORD has a current DP of 63, with 70 at MDW. ORD also has the highest area temp currently at 95.

I cross-checked things with our back-up units here, and they are right on par with the lower DP and are actually running a bit warmer with the temp at 97.

[cyclone77]

Definitely a lame heat wave for the DVN area by our standards.  Only low 90s so far during this stretch, and dews haven't even officially hit 80.  This is weak sauce.

[cyclone77]

1 hour ago, Chicago Storm said:

SUPER localized scouring out and mixing in parts of the metro area currently.

All sites are carrying a 70+ DP, except for ORD and UGN, which have been running in the low to upper 60's. ORD has a current DP of 63, with 70 at MDW. ORD also has the highest area temp currently at 95.

I cross-checked things with our back-up units here, and they are right on par with the lower DP and are actually running a bit warmer with the temp at 97.

All of that concrete throughout the area no doubt adding to the mixing.  Super adiabatic lapse rates over localized areas.

[TheClimateChanger]

97F at Cleveland. Hottest overall since 2012 (98F), and matches 2012 for hottest by this date in the year since 1988. Toledo topped out at 99F, but it hasn’t been as long since it’s been that hot there. 2024 topped out at 99F & 2022 at 100F. I think Toronto, Ont. reached at least 98F. Bet it’s bet awhile since they’ve seen that temperature.