Current Conditions

Mercedes, Texas

92°F33°C

Showers

Feels like103°F40°C

Wind

SE 15 mph24 km/h

Humidity

58%

Cloud Cover

63%

As of Tuesday, September 8, 2026 at 6:09 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 86°F30°C. Breezy from the SE at 14 to 15 mph22 to 24 km/h. 50% chance of showers in the evening.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Showers	High 98°F37°CFeels 108°F42°C	Low 86°F30°CFeels 98°F37°C	Precip 0.07 in1.8 mm87%	Cloud 56%	Wind SE 13 mph22 km/h	Tuesday: Mostly cloudy and hot, with a high of 98°F37°C — feels like 108°F42°C. Breezy from the SE at 13 to 14 mph21 to 23 km/h. 87% chance of showers in the afternoon. Heat risk in the afternoon. Tuesday Night: Mostly cloudy, with a low around 86°F30°C. Breezy from the SE at 14 to 15 mph22 to 24 km/h. 50% chance of showers in the evening.
Showers	High 97°F36°CFeels 109°F43°C	Low 81°F27°CFeels 88°F31°C	Precip 0.08 in2.1 mm88%	Cloud 53%	Wind SE 10 mph16 km/h	Wednesday: Mostly 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 9 to 13 mph14 to 20 km/h. 88% chance of showers in the afternoon. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 82°F28°C. Breezy from the SE at 10 to 13 mph17 to 21 km/h. 45% chance of showers in the evening.
Drizzle	High 100°F38°CFeels 103°F40°C	Low 81°F27°CFeels 87°F30°C	Precip 0.03 in0.8 mm44%	Cloud 51%	Wind SSE 11 mph18 km/h	Thursday: Mostly cloudy and hot, with a high of 100°F38°C and morning low of 81°F27°C. Breezy from the SSE at 10 to 12 mph16 to 19 km/h. 44% chance of drizzle in the afternoon. Heat risk in the afternoon. Thursday Night: Partly cloudy, with a low around 82°F28°C. Windy from the SE at 12 to 16 mph19 to 26 km/h. 22% chance of drizzle in the evening.
Drizzle	High 100°F38°CFeels 109°F43°C	Low 82°F28°CFeels 88°F31°C	Precip 0.01 in0.2 mm19%	Cloud 34%	Wind SSE 14 mph23 km/h	Friday: Partly cloudy and hot, with a high of 100°F38°C and morning low of 82°F28°C — feels like 109°F43°C. Windy from the SSE at 14 to 16 mph22 to 26 km/h. 19% chance of drizzle in the afternoon. Heat risk in the afternoon. Friday Night: Partly cloudy, with a low around 82°F28°C. Windy from the SSE at 15 to 18 mph24 to 28 km/h.
Drizzle	High 99°F37°CFeels 111°F44°C	Low 82°F28°CFeels 90°F32°C	Precip 0.01 in0.2 mm19%	Cloud 20%	Wind SSE 15 mph24 km/h	Saturday: Mostly clear and hot, with a high of 99°F37°C and morning low of 82°F28°C — feels like 111°F44°C. Windy from the SSE at 15 to 17 mph24 to 27 km/h. 19% chance of drizzle in the afternoon. Heat risk in the afternoon. Saturday Night: Mostly clear, with a low around 83°F28°C. Windy from the SSE at 15 to 17 mph24 to 28 km/h.
Drizzle	High 97°F36°CFeels 108°F42°C	Low 82°F28°CFeels 90°F32°C	Precip 0.02 in0.6 mm46%	Cloud 29%	Wind SE 13 mph21 km/h	Sunday: Partly cloudy and hot, with a high of 97°F36°C and morning low of 82°F28°C — feels like 108°F42°C. Breezy from the SSE at 13 to 15 mph21 to 24 km/h. 46% chance of drizzle in the afternoon. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 83°F28°C. Breezy from the SE at 13 to 15 mph21 to 24 km/h.
Drizzle	High 97°F36°CFeels 107°F42°C	Low 81°F27°CFeels 89°F31°C	Precip 0.02 in0.6 mm36%	Cloud 34%	Wind SSE 13 mph20 km/h	Monday: Partly cloudy and hot, with a high of 97°F36°C and morning low of 81°F27°C — feels like 108°F42°C. Windy from the SSE at 13 to 16 mph20 to 26 km/h. 36% chance of drizzle in the afternoon. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 83°F28°C. Windy from the SE at 13 to 16 mph20 to 26 km/h. 10% chance of drizzle.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 8	98°F37°C Feels 108°F42°C	86°F30°C Feels 98°F37°C	0.07 in1.8 mm· 87%	56%	Showers	SE 13 mph22 km/h
DayMostly cloudy and hot, with a high of 98°F37°C — feels like 108°F42°C. Breezy from the SE at 13 to 14 mph21 to 23 km/h. 87% chance of showers in the afternoon. Heat risk in the afternoon. NightMostly cloudy, with a low around 86°F30°C. Breezy from the SE at 14 to 15 mph22 to 24 km/h. 50% chance of showers in the evening.
	WednesdaySep 9	97°F36°C Feels 109°F43°C	81°F27°C Feels 88°F31°C	0.08 in2.1 mm· 88%	53%	Showers	SE 10 mph16 km/h
DayMostly 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 9 to 13 mph14 to 20 km/h. 88% chance of showers in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Breezy from the SE at 10 to 13 mph17 to 21 km/h. 45% chance of showers in the evening.
	ThursdaySep 10	100°F38°C Feels 103°F40°C	81°F27°C Feels 87°F30°C	0.03 in0.8 mm· 44%	51%	Drizzle	SSE 11 mph18 km/h
DayMostly cloudy and hot, with a high of 100°F38°C and morning low of 81°F27°C. Breezy from the SSE at 10 to 12 mph16 to 19 km/h. 44% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Windy from the SE at 12 to 16 mph19 to 26 km/h. 22% chance of drizzle in the evening.
	FridaySep 11	100°F38°C Feels 109°F43°C	82°F28°C Feels 88°F31°C	0.01 in0.2 mm· 19%	34%	Drizzle	SSE 14 mph23 km/h
DayPartly cloudy and hot, with a high of 100°F38°C and morning low of 82°F28°C — feels like 109°F43°C. Windy from the SSE at 14 to 16 mph22 to 26 km/h. 19% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Windy from the SSE at 15 to 18 mph24 to 28 km/h.
	SaturdaySep 12	99°F37°C Feels 111°F44°C	82°F28°C Feels 90°F32°C	0.01 in0.2 mm· 19%	20%	Drizzle	SSE 15 mph24 km/h
DayMostly clear and hot, with a high of 99°F37°C and morning low of 82°F28°C — feels like 111°F44°C. Windy from the SSE at 15 to 17 mph24 to 27 km/h. 19% chance of drizzle in the afternoon. Heat risk in the afternoon. NightMostly clear, with a low around 83°F28°C. Windy from the SSE at 15 to 17 mph24 to 28 km/h.
	SundaySep 13	97°F36°C Feels 108°F42°C	82°F28°C Feels 90°F32°C	0.02 in0.6 mm· 46%	29%	Drizzle	SE 13 mph21 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. Breezy from the SSE at 13 to 15 mph21 to 24 km/h. 46% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 83°F28°C. Breezy from the SE at 13 to 15 mph21 to 24 km/h.
	MondaySep 14	97°F36°C Feels 107°F42°C	81°F27°C Feels 89°F31°C	0.02 in0.6 mm· 36%	34%	Drizzle	SSE 13 mph20 km/h
DayPartly cloudy and hot, with a high of 97°F36°C and morning low of 81°F27°C — feels like 108°F42°C. Windy from the SSE at 13 to 16 mph20 to 26 km/h. 36% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 83°F28°C. Windy from the SE at 13 to 16 mph20 to 26 km/h. 10% chance of drizzle.
	TuesdaySep 15	98°F37°C Feels 105°F41°C	81°F27°C Feels 87°F30°C	0.01 in0.2 mm· 9%	33%	Hot	SSE 14 mph22 km/h
DayPartly cloudy and hot, with a high of 98°F37°C and morning low of 81°F27°C — feels like 106°F41°C. Windy from the SSE at 14 to 17 mph22 to 27 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Windy from the SE at 13 to 16 mph21 to 26 km/h.
	WednesdaySep 16	96°F36°C Feels 105°F41°C	80°F26°C	0.02 in0.5 mm· 32%	42%	Drizzle	SE 10 mph16 km/h
DayPartly cloudy and hot, with a high of 96°F36°C and morning low of 80°F26°C — feels like 106°F41°C. Breezy from the SE at 10 to 13 mph15 to 21 km/h. 32% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 81°F27°C. Breezy from the SE at 10 to 13 mph17 to 22 km/h. 18% chance of drizzle in the evening.
	ThursdaySep 17	94°F34°C Feels 104°F40°C	80°F26°C	0.07 in1.8 mm· 48%	54%	Showers	ESE 8 mph13 km/h
DayMostly cloudy and hot, with a high of 94°F34°C and morning low of 80°F26°C — feels like 104°F40°C. Breezy from the ESE at 8 to 12 mph13 to 19 km/h. 48% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 81°F27°C. Breezy from the ESE at 8 to 12 mph14 to 20 km/h. 31% chance of drizzle before dawn.
	FridaySep 18	93°F34°C Feels 103°F40°C	79°F26°C	0.11 in2.8 mm· 57%	58%	Showers	ESE 8 mph12 km/h
DayMostly cloudy and hot, with a high of 93°F34°C and morning low of 79°F26°C — feels like 104°F40°C. Breezy from the E at 7 to 11 mph12 to 18 km/h. 57% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 81°F27°C. Breezy from the ESE at 8 to 11 mph13 to 19 km/h. 42% chance of drizzle before dawn.
	SaturdaySep 19	92°F33°C Feels 101°F38°C	79°F26°C	0.17 in4.3 mm· 57%	52%	Showers	ESE 7 mph12 km/h
DayMostly cloudy and hot, with a high of 92°F33°C and morning low of 79°F26°C — feels like 100°F38°C. Breezy from the E at 7 to 11 mph12 to 17 km/h. 57% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 80°F27°C. Breezy from the ESE at 7 to 11 mph12 to 17 km/h. 38% chance of showers throughout the night.
	SundaySep 20	93°F34°C Feels 101°F38°C	78°F25°C	0.11 in2.9 mm· 39%	48%	Showers	ESE 8 mph13 km/h
DayMostly cloudy and hot, with a high of 93°F34°C and morning low of 78°F25°C — feels like 100°F38°C. Breezy from the E at 8 to 10 mph13 to 17 km/h. 39% chance of showers throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 79°F26°C. Breezy from the ESE at 8 to 11 mph13 to 18 km/h. 37% chance of showers throughout the night.
	MondaySep 21	91°F33°C Feels 96°F36°C	77°F25°C	0.17 in4.2 mm· 43%	50%	Showers	E 9 mph14 km/h
DayMostly cloudy and hot, with a high of 91°F33°C and morning low of 77°F25°C — feels like 97°F36°C. Breezy from the ENE at 9 to 12 mph15 to 19 km/h. 43% chance of showers throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the ESE at 8 to 11 mph14 to 19 km/h. 33% chance of showers throughout the night.
	TuesdaySep 22	90°F32°C Feels 95°F35°C	76°F24°C	0.13 in3.3 mm· 40%	53%	Showers	E 9 mph14 km/h
DayMostly cloudy and hot, with a high of 90°F32°C and morning low of 76°F24°C. Breezy from the E at 9 to 11 mph15 to 19 km/h. 40% chance of showers throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 77°F25°C. Breezy from the ESE at 9 to 11 mph14 to 18 km/h. 27% chance of showers throughout the night.

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