If you’re training for a fall race and struggling through the heat right now, let me start by saying: you’re doing the hard work that most people avoid — and it’s going to pay off.
Summer running can feel brutal. The heat. The humidity. The sweat that starts before you even finish your warm-up. Your paces might slow, your energy might dip, and let’s be honest—some days it feels like a win just to get out the door. But here’s what many runners don’t realize:
Summer miles = fall smiles.
Yes, it’s a little cheesy… but it’s also 100% true.
Heat Training Improves Your Cardio Fitness (Even When It Doesn’t Feel Like It)
When you run in hot conditions, your body has to work harder to keep your core temperature stable. Your heart pumps more blood to your skin to release heat, which means less blood is available to your working muscles. Sounds like a disadvantage, right?
But here’s the magic:
That extra cardiovascular strain forces your heart and lungs to adapt. You get more efficient at cooling yourself, your sweat rate improves, and your perceived effort threshold rises.
So even though you might be running slower on paper, your body is getting stronger under pressure — and when the cool fall air rolls in? You’ll feel like a machine.
Heat Teaches You the Art (and Science) of Hydration
One of the biggest mistakes runners make in the fall is neglecting hydration just because it’s not 85 degrees anymore. But summer teaches you to hydrate intentionally. You start to understand:
- What dehydration feels like
- How your body responds to heat stress
- Which hydration + electrolyte combos work best for you
This is training gold. The habits you build now will carry into race day.
Summer Running Builds Mental Grit
Training in tough conditions forces you to rely less on pace and more on feel. You learn how to:
- Run by effort, not ego
- Accept discomfort without panic
- Show up when it’s inconvenient
These are the exact skills that help you push through mile 21 of a marathon or keep steady in the final 5K of a half. You don’t just build fitness in the summer—you build resilience.
Slower Paces Don’t Mean You’re Losing Fitness
Let’s bust a myth here:
Running slower in the summer doesn’t mean you’re getting worse. It just means your body is managing more stress—and that’s okay.
In fact, this period is often when you’re laying down the most important part of your training foundation. You’re building aerobic capacity, learning to listen to your body, and dialing in your fueling and recovery habits.
👉 When race season comes, you’ll be able to handle race-pace efforts with more confidence—and less struggle.
It’s Not About Perfect. It’s About Consistent.
Your fall PR isn’t built in the final 6 weeks of a training plan.
It’s being built right now. On the hot runs. The early morning efforts. The slower long runs that feel harder than they “should.”
If you’re showing up this summer—even imperfectly—you are 100% on track for something great in the fall.
So keep lacing up. Hydrate. Slow down when needed. Trust the process.
Your fall self will thank you.
Download your free Running in the Heat guide here: https://mileswithmisty.com/product/your-guide-to-training-in-the-heat/
Want more support this season?
If you’re building toward a fall race and want structured strength, accountability, and guidance for the long run—check out my small group strength training program. Women-focused, dumbbell-based, and designed to support your running, not compete with it.
Always in your corner,
Coach Misty
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