McKinney, TX

Hourly WBGT forecast from the National Weather Service

≤ 82.1° Normal, three 3 min breaks/hr

82.2–87.0° Three 4 min breaks/hr

87.1–90.0° Max 2 hrs, four 4 min breaks/hr

90.1–91.9° Max 1 hr, four 4 min breaks

≥ 92.0° No outdoor training

Today

Monday, Sep 21

NWS HeatRisk

2 Moderate

Time	Feels	MSA	NWS	Chart
9am	78°	75.4°	75°	84.2°
10am	86°	79.4°	79°	86.0°
11am	91°	83.0°	81°	87.8°
12pm	94°	86.8°	84°	89.6°
1pm	97°	89.0°	86°	89.6°
2pm	97°	88.1°	86°	91.4°
3pm	99°	87.0°	86°	91.4°
4pm	101°	85.4°	86°	93.2°
5pm	99°	83.2°	83°	91.4°
6pm	96°	81.4°	82°	89.6°
7pm	95°	80.6°	81°	87.8°
8pm	89°	78.0°	78°	86.0°
9pm	88°	77.4°	77°	86.0°
10pm	85°	76.4°	76°	84.2°
Peak		89.0° 1pm	86° 1pm	93.2° 4pm

NWS HeatRisk

2 Moderate

Time	Feels	MSA	NWS	Chart
6am	73°	71.6°	71°	80.6°
7am	73°	71.6°	71°	80.6°
8am	73°	72.1°	72°	80.6°
9am	76°	74.9°	75°	82.4°
10am	86°	79.1°	78°	86.0°
11am	92°	82.6°	81°	87.8°
12pm	96°	85.7°	84°	89.6°
1pm	100°	88.0°	86°	91.4°
2pm	101°	88.1°	87°	93.2°
3pm	101°	86.8°	86°	93.2°
4pm	104°	86.5°	86°	95.0°
5pm	100°	83.9°	84°	91.4°
6pm	98°	82.5°	82°	91.4°
7pm	95°	80.6°	81°	87.8°
8pm	90°	78.4°	78°	86.0°
9pm	89°	78.0°	78°	86.0°
10pm	87°	–	76°	84.2°
Peak		88.1° 2pm	87° 2pm	95.0° 4pm

NWS HeatRisk

2 Moderate

Time	Feels	MSA	NWS	Chart
6am	73°	–	70°	78.8°
7am	72°	–	70°	77.0°
8am	75°	–	73°	80.6°
9am	78°	–	75°	84.2°
10am	85°	–	77°	84.2°
11am	89°	–	80°	87.8°
12pm	94°	–	83°	87.8°
1pm	98°	–	85°	91.4°
2pm	99°	–	86°	91.4°
3pm	99°	–	85°	91.4°
4pm	102°	–	85°	93.2°
5pm	98°	–	83°	91.4°
6pm	97°	–	82°	89.6°
7pm	94°	–	81°	87.8°
8pm	91°	–	78°	87.8°
9pm	88°	–	77°	84.2°
10pm	85°	–	75°	84.2°
Peak			86° 2pm	93.2° 4pm

About these numbers

MSA is the Perry Weather forecast for the weather station at Al Ruschhaupt Park. McKinney Soccer Association makes heat decisions from that station's live readings. It only reaches about 36 hours out.
NWS is the National Weather Service wet bulb globe temperature forecast, which accounts for sun, clouds, and wind.
Chart is the U.S. Soccer temperature + humidity lookup table (nearest cell). It assumes full sun and light wind, so it usually reads hotter.
Colors are the U.S. Soccer heat guideline alert levels for Category 3 regions:
- ≤ 82.1°: Normal activity, three 3 min breaks per hour (or 10 min every 40)
- 82.2–87.0°: Three 4 min breaks per hour (or 12 min every 40)
- 87.1–90.0°: Max 2 hours, four 4 min breaks per hour (or 10 min every 30)
- 90.1–91.9°: Max 1 hour, four 4 min breaks, no extra conditioning
- ≥ 92.0°: No outdoor training; delay until cooler or cancel
Matches get a 4 min hydration break per 30 min of play at 89.6°+.
Rain and thunder chance: outlined at 15%+, part-filled at 40%+, solid at 70%+. Hover for the percent. NWS often has no thunder forecast for the first day or two.
HeatRisk is the NWS daily 0–4 index, which also considers how unusual the heat is and overnight lows.