***OFFICIAL 2026 WEATHER THREAD***

[cyclonedave25]

The highest heat index for DM is 122° in 1936, I think that will get beat today.

 

[Pope]

Mowed my MIL's yard this morning and trimmed all her bushes. Was nasty hot and humid, but there was cloud cover then, so I survived.

 

[Pope]

The highest heat index for DM is 122° in 1936, I think that will get beat today.

According to WHO channel 13 weather app, the heat index in Ankeny right now is 120. Turned my thermostat up a few degrees to try to give my AC unit a fighting chance. Also have a large fan blowing up the basement steps to try to help circulate the cooler air from downstairs.

 

[StClone]

Spots in cornfields turning white.

Is that stress related and herbcide acting to bleach the leaves?

 

[nfrine]

Mowed my MIL's yard this morning and trimmed all her bushes. Was nasty hot and humid, but there was cloud cover then, so I survived.

There's a comment needed here.....

 

[Kinch]

102 in Van Buren County on my station. 140 heat index. At least three other weather stations in the county have 102 or above.

 

[wintersmd]

There's a comment needed here.....

I am staying away from that one.

 

[MLawrence]

So I was the idiot that painted a porch today. Probably haven’t sweated that much since high school football.

 

[somecyguy]

As of an hour ago: A few weak cells have been moving slowly eastward
across northern Iowa this morning in vicinity of the a weak MCV
moving across the area. Within the last 20 minutes, convective
intensity has started to increase somewhat. Given the weak forcing,
it is is not clear whether these storms will mature, but if they do,
4000-5000 J/kg MLCAPE and 45 to 50 knots of effective shear will
support supercells capable of large hail and severe wind gusts.

Looking at the radar there is one cell NW of Waterloo that looks like it could get nasty.

 

[dosry5]

I am staying away from that one.

That’s what Pope should have done

 

[Hoggins]

Wonderful pool day. So nice

 

[theshadow]

 

[FLYINGCYCLONE]

Algona is currently 88 degrees with a heat index of 121. A few hours ago Algona was 91 degrees, 100% humidity, and a heat index of 137.

 

[Pope]

Algona is currently 88 degrees with a heat index of 121. A few hours ago Algona was 91 degrees, 100% humidity, and a heat index of 137.

That is absolutely nuts, and a little scary.

 

[FerShizzle]

Algona is currently 88 degrees with a heat index of 121. A few hours ago Algona was 91 degrees, 100% humidity, and a heat index of 137.

0/10

 

[FLYINGCYCLONE]

You got that right.

 

[awd4cy]

its also really stressful on the grass to mow it in extreme heat.

Good. I want to stress the f out of it. I’m sick of mowing.

 

[awd4cy]

Wonderful pool day. So nice

Agreed. Was at the pool for 3 hours today with kids. Did have to hydrate after but it was a great day.

 

[JP4CY]

Algona is currently 88 degrees with a heat index of 121. A few hours ago Algona was 91 degrees, 100% humidity, and a heat index of 137.

Jason Parkin thinks their sensor broke FWIW.

 

[ISUAgronomist]

Jason Parkin thinks their sensor broke FWIW.

Yeah the Algona weather station tends to have odd readings periodically