Current Conditions

Mercedes, Texas

100°F38°C

Hot

Wind

SSE 19 mph31 km/h

Humidity

36%

Cloud Cover

As of Wednesday, August 12, 2026 at 3:35 PM CDT

Today's Outlook

Day

Mostly clear and hot, with a high of 100°F38°C — feels like 106°F41°C. Windy from the SSE at 19 mph30 km/h. Heat risk in the afternoon.

Night

Mostly clear, with a low around 86°F30°C. Windy from the SE at 17 to 19 mph28 to 30 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Hot	High 100°F38°CFeels 106°F41°C	Low 86°F30°CFeels 95°F35°C	Precip 0 in0 mm—	Cloud 6%	Wind SSE 18 mph29 km/h	Wednesday: Mostly clear and hot, with a high of 100°F38°C — feels like 106°F41°C. Windy from the SSE at 19 mph30 km/h. Heat risk in the afternoon. Wednesday Night: Mostly clear, with a low around 86°F30°C. Windy from the SE at 17 to 19 mph28 to 30 km/h.
Hot	High 99°F37°CFeels 109°F43°C	Low 83°F28°CFeels 91°F33°C	Precip 0 in0.1 mm—	Cloud 24%	Wind SSE 16 mph26 km/h	Thursday: Partly cloudy and hot, with a high of 99°F37°C and morning low of 83°F28°C — feels like 109°F43°C. Windy from the SSE at 16 to 19 mph26 to 30 km/h. Heat risk in the afternoon. Thursday Night: Mostly clear, with a low around 83°F29°C. Windy from the SE at 16 to 20 mph26 to 32 km/h.
Hot	High 97°F36°CFeels 107°F42°C	Low 82°F28°CFeels 91°F33°C	Precip 0.02 in0.6 mm—	Cloud 41%	Wind SE 15 mph24 km/h	Friday: Partly cloudy and hot, with a high of 97°F36°C and morning low of 82°F28°C — feels like 108°F42°C. Windy from the SSE at 15 to 18 mph25 to 29 km/h. Heat risk in the afternoon. Friday Night: Partly cloudy, with a low around 83°F29°C. Windy from the SE at 15 to 17 mph23 to 28 km/h.
Hot	High 98°F37°CFeels 103°F40°C	Low 82°F28°CFeels 90°F32°C	Precip 0 in0.1 mm—	Cloud 39%	Wind SE 13 mph21 km/h	Saturday: Partly cloudy and hot, with a high of 98°F37°C and morning low of 82°F28°C — feels like 104°F40°C. Windy from the SE at 13 to 16 mph21 to 26 km/h. Heat risk in the afternoon. Saturday Night: Partly cloudy, with a low around 83°F28°C. Windy from the SE at 13 to 16 mph21 to 26 km/h.
Hot	High 97°F36°CFeels 109°F43°C	Low 81°F27°CFeels 87°F31°C	Precip 0.02 in0.4 mm—	Cloud 33%	Wind SE 11 mph17 km/h	Sunday: Partly cloudy and hot, with a high of 97°F36°C and morning low of 81°F27°C — feels like 109°F43°C. Breezy from the SE at 10 to 14 mph16 to 22 km/h. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 82°F28°C. Breezy from the SE at 11 to 15 mph18 to 25 km/h.
Hot	High 97°F36°CFeels 107°F41°C	Low 80°F27°C	Precip 0.02 in0.5 mm—	Cloud 27%	Wind SE 10 mph17 km/h	Monday: Partly cloudy and hot, with a high of 97°F36°C and morning low of 80°F27°C — feels like 106°F41°C. Breezy from the SE at 10 to 14 mph16 to 22 km/h. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 81°F27°C. Breezy from the SE at 11 to 15 mph17 to 25 km/h.
Hot	High 99°F37°CFeels 104°F40°C	Low 79°F26°C	Precip 0 in0.1 mm—	Cloud 21%	Wind SE 11 mph18 km/h	Tuesday: Mostly clear and hot, with a high of 99°F37°C and morning low of 79°F26°C. Breezy from the SSE at 11 to 14 mph18 to 22 km/h. Heat risk in the afternoon. Tuesday Night: Mostly clear, with a low around 81°F27°C. Breezy from the SE at 12 to 15 mph19 to 25 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdayAug 12	100°F38°C Feels 106°F41°C	86°F30°C Feels 95°F35°C	0 in0 mm· —	6%	Hot	SSE 18 mph29 km/h
DayMostly clear and hot, with a high of 100°F38°C — feels like 106°F41°C. Windy from the SSE at 19 mph30 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 86°F30°C. Windy from the SE at 17 to 19 mph28 to 30 km/h.
	ThursdayAug 13	99°F37°C Feels 109°F43°C	83°F28°C Feels 91°F33°C	0 in0.1 mm· —	24%	Hot	SSE 16 mph26 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 83°F28°C — feels like 109°F43°C. Windy from the SSE at 16 to 19 mph26 to 30 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 83°F29°C. Windy from the SE at 16 to 20 mph26 to 32 km/h.
	FridayAug 14	97°F36°C Feels 107°F42°C	82°F28°C Feels 91°F33°C	0.02 in0.6 mm· —	41%	Hot	SE 15 mph24 km/h
DayPartly cloudy and hot, with a high of 97°F36°C and morning low of 82°F28°C — feels like 108°F42°C. Windy from the SSE at 15 to 18 mph25 to 29 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 83°F29°C. Windy from the SE at 15 to 17 mph23 to 28 km/h.
	SaturdayAug 15	98°F37°C Feels 103°F40°C	82°F28°C Feels 90°F32°C	0 in0.1 mm· —	39%	Hot	SE 13 mph21 km/h
DayPartly cloudy and hot, with a high of 98°F37°C and morning low of 82°F28°C — feels like 104°F40°C. Windy from the SE at 13 to 16 mph21 to 26 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 83°F28°C. Windy from the SE at 13 to 16 mph21 to 26 km/h.
	SundayAug 16	97°F36°C Feels 109°F43°C	81°F27°C Feels 87°F31°C	0.02 in0.4 mm· —	33%	Hot	SE 11 mph17 km/h
DayPartly cloudy and hot, with a high of 97°F36°C and morning low of 81°F27°C — feels like 109°F43°C. Breezy from the SE at 10 to 14 mph16 to 22 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Breezy from the SE at 11 to 15 mph18 to 25 km/h.
	MondayAug 17	97°F36°C Feels 107°F41°C	80°F27°C	0.02 in0.5 mm· —	27%	Hot	SE 10 mph17 km/h
DayPartly cloudy and hot, with a high of 97°F36°C and morning low of 80°F27°C — feels like 106°F41°C. Breezy from the SE at 10 to 14 mph16 to 22 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 81°F27°C. Breezy from the SE at 11 to 15 mph17 to 25 km/h.
	TuesdayAug 18	99°F37°C Feels 104°F40°C	79°F26°C	0 in0.1 mm· —	21%	Hot	SE 11 mph18 km/h
DayMostly clear and hot, with a high of 99°F37°C and morning low of 79°F26°C. Breezy from the SSE at 11 to 14 mph18 to 22 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 81°F27°C. Breezy from the SE at 12 to 15 mph19 to 25 km/h.
	WednesdayAug 19	98°F37°C Feels 107°F41°C	80°F27°C	0.01 in0.3 mm· —	35%	Hot	SSE 12 mph20 km/h
DayPartly cloudy and hot, with a high of 98°F37°C and morning low of 80°F27°C — feels like 106°F41°C. Breezy from the SSE at 12 to 15 mph19 to 24 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 81°F27°C. Windy from the SE at 12 to 16 mph20 to 26 km/h.
	ThursdayAug 20	99°F37°C Feels 107°F42°C	81°F27°C Feels 88°F31°C	0.01 in0.2 mm· —	37%	Hot	SSE 13 mph21 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 81°F27°C — feels like 108°F42°C. Windy from the SSE at 13 to 16 mph21 to 26 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Windy from the SE at 13 to 17 mph21 to 27 km/h.
	FridayAug 21	99°F37°C Feels 104°F40°C	80°F27°C	0 in0.1 mm· —	37%	Hot	SE 12 mph19 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 80°F27°C. Breezy from the SSE at 12 to 14 mph19 to 23 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 81°F27°C. Windy from the SE at 12 to 16 mph20 to 25 km/h.
	SaturdayAug 22	99°F37°C Feels 103°F39°C	79°F26°C	0.01 in0.2 mm· —	31%	Hot	SE 10 mph16 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 79°F26°C. Breezy from the SE at 9 to 12 mph15 to 20 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 80°F27°C. Breezy from the SE at 11 to 14 mph18 to 23 km/h.
	SundayAug 23	99°F37°C Feels 102°F39°C	78°F26°C	0.01 in0.2 mm· —	27%	Hot	SE 10 mph16 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 78°F26°C. Breezy from the SE at 9 to 12 mph14 to 19 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 80°F27°C. Breezy from the SE at 11 to 14 mph17 to 23 km/h.
	MondayAug 24	99°F37°C Feels 104°F40°C	79°F26°C	0.01 in0.3 mm· —	25%	Hot	SE 10 mph17 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 79°F26°C. Breezy from the SE at 10 to 13 mph15 to 21 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 80°F27°C. Breezy from the SE at 11 to 15 mph18 to 24 km/h.
	TuesdayAug 25	98°F37°C Feels 105°F40°C	80°F27°C	0.02 in0.5 mm· —	30%	Hot	SE 11 mph17 km/h
DayPartly cloudy and hot, with a high of 98°F37°C and morning low of 80°F27°C — feels like 104°F40°C. Breezy from the SE at 10 to 13 mph16 to 21 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 81°F27°C. Breezy from the SE at 12 to 15 mph19 to 24 km/h.
	WednesdayAug 26	98°F37°C Feels 106°F41°C	80°F26°C	0.02 in0.5 mm· —	30%	Hot	SE 11 mph17 km/h
DayPartly cloudy and hot, with a high of 98°F37°C and morning low of 80°F26°C — feels like 106°F41°C. Breezy from the SE at 10 to 13 mph16 to 21 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 81°F27°C. Breezy from the SE at 11 to 15 mph18 to 24 km/h.

Nearby Cities

Weslaco5 mi8 km Donna9 mi14 km Alamo13 mi21 km Harlingen14 mi22 km San Juan15 mi25 km Pharr17 mi27 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 26.1498°N, 97.9136°W·Elevation: 21m·Timezone: America/Chicago·Population: 16,657