Current Conditions

Mercedes, Texas

95°F35°C

Hot

Feels like103°F40°C

Wind

SE 16 mph25 km/h

Humidity

48%

Cloud Cover

18%

As of Tuesday, September 1, 2026 at 7:55 PM CDT

Today's Outlook

Night

Partly cloudy, with a low around 82°F28°C. Windy from the SE at 14 to 17 mph22 to 28 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Hot	High 103°F39°C	Low 81°F27°CFeels 88°F31°C	Precip 0 in0.1 mm5%	Cloud 36%	Wind SSE 13 mph20 km/h	Wednesday: Partly cloudy and hot, with a high of 103°F39°C and morning low of 81°F27°C. Breezy from the SSE at 11 to 13 mph18 to 21 km/h. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 82°F28°C. Windy from the SE at 14 to 17 mph22 to 28 km/h.
Drizzle	High 101°F38°CFeels 109°F43°C	Low 82°F28°CFeels 90°F32°C	Precip 0.01 in0.2 mm17%	Cloud 70%	Wind SSE 14 mph22 km/h	Thursday: Mostly cloudy and hot, with a high of 101°F38°C and morning low of 82°F28°C — feels like 109°F43°C. Breezy from the SSE at 13 to 15 mph20 to 24 km/h. 17% chance of drizzle in the afternoon. Heat risk in the afternoon. Thursday Night: Mostly cloudy, with a low around 83°F29°C. Windy from the SE at 15 to 18 mph24 to 29 km/h.
Drizzle	High 99°F37°CFeels 107°F42°C	Low 82°F28°CFeels 90°F32°C	Precip 0.01 in0.2 mm27%	Cloud 53%	Wind SE 13 mph21 km/h	Friday: Mostly cloudy and hot, with a high of 99°F37°C and morning low of 82°F28°C — feels like 108°F42°C. Breezy from the SE at 12 to 15 mph20 to 24 km/h. 27% chance of drizzle in the afternoon. Heat risk in the afternoon. Friday Night: Mostly cloudy, with a low around 83°F28°C. Windy from the SE at 13 to 16 mph21 to 26 km/h.
Drizzle	High 98°F36°CFeels 108°F42°C	Low 82°F28°CFeels 90°F32°C	Precip 0.02 in0.6 mm52%	Cloud 51%	Wind SE 11 mph18 km/h	Saturday: Mostly cloudy and hot, with a high of 98°F36°C and morning low of 82°F28°C — feels like 108°F42°C. Breezy from the SE at 11 to 13 mph17 to 21 km/h. 52% chance of drizzle in the afternoon. Heat risk in the afternoon. Saturday Night: Partly cloudy, with a low around 83°F28°C. Breezy from the SE at 12 to 15 mph19 to 24 km/h. 15% chance of drizzle in the evening.
Drizzle	High 98°F36°CFeels 106°F41°C	Low 81°F27°CFeels 89°F31°C	Precip 0.02 in0.6 mm48%	Cloud 48%	Wind SE 11 mph18 km/h	Sunday: Mostly cloudy and hot, with a high of 98°F36°C and morning low of 81°F27°C — feels like 106°F41°C. Breezy from the SE at 10 to 13 mph17 to 21 km/h. 48% chance of drizzle in the afternoon. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 82°F28°C. Breezy from the SE at 12 to 15 mph19 to 24 km/h. 25% chance of drizzle in the evening.
Drizzle	High 97°F36°CFeels 108°F42°C	Low 81°F27°CFeels 88°F31°C	Precip 0.03 in0.7 mm64%	Cloud 46%	Wind SE 11 mph18 km/h	Monday: Mostly cloudy and hot, with a high of 97°F36°C and morning low of 81°F27°C — feels like 108°F42°C. Breezy from the SE at 11 to 14 mph18 to 23 km/h. 64% chance of drizzle in the afternoon. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 82°F28°C. Breezy from the SE at 12 to 15 mph19 to 24 km/h. 21% chance of drizzle in the evening.
Showers	High 96°F36°CFeels 107°F42°C	Low 81°F27°CFeels 89°F32°C	Precip 0.04 in1.1 mm55%	Cloud 44%	Wind SE 12 mph20 km/h	Tuesday: Mostly cloudy and hot, with a high of 96°F36°C and morning low of 81°F27°C — feels like 108°F42°C. Breezy from the SE at 13 to 15 mph20 to 25 km/h. 55% chance of showers around midday. Heat risk in the afternoon. Tuesday Night: Partly cloudy, with a low around 82°F28°C. Breezy from the SE at 12 to 15 mph20 to 25 km/h. 26% chance of drizzle in the evening.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	103°F39°C	81°F27°C Feels 88°F31°C	0 in0.1 mm· 5%	36%	Hot	SSE 13 mph20 km/h
DayPartly cloudy and hot, with a high of 103°F39°C and morning low of 81°F27°C. Breezy from the SSE at 11 to 13 mph18 to 21 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Windy from the SE at 14 to 17 mph22 to 28 km/h.
	ThursdaySep 3	101°F38°C Feels 109°F43°C	82°F28°C Feels 90°F32°C	0.01 in0.2 mm· 17%	70%	Drizzle	SSE 14 mph22 km/h
DayMostly cloudy and hot, with a high of 101°F38°C and morning low of 82°F28°C — feels like 109°F43°C. Breezy from the SSE at 13 to 15 mph20 to 24 km/h. 17% chance of drizzle in the afternoon. Heat risk in the afternoon. NightMostly cloudy, with a low around 83°F29°C. Windy from the SE at 15 to 18 mph24 to 29 km/h.
	FridaySep 4	99°F37°C Feels 107°F42°C	82°F28°C Feels 90°F32°C	0.01 in0.2 mm· 27%	53%	Drizzle	SE 13 mph21 km/h
DayMostly cloudy and hot, with a high of 99°F37°C and morning low of 82°F28°C — feels like 108°F42°C. Breezy from the SE at 12 to 15 mph20 to 24 km/h. 27% chance of drizzle in the afternoon. Heat risk in the afternoon. NightMostly cloudy, with a low around 83°F28°C. Windy from the SE at 13 to 16 mph21 to 26 km/h.
	SaturdaySep 5	98°F36°C Feels 108°F42°C	82°F28°C Feels 90°F32°C	0.02 in0.6 mm· 52%	51%	Drizzle	SE 11 mph18 km/h
DayMostly cloudy and hot, with a high of 98°F36°C and morning low of 82°F28°C — feels like 108°F42°C. Breezy from the SE at 11 to 13 mph17 to 21 km/h. 52% 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 12 to 15 mph19 to 24 km/h. 15% chance of drizzle in the evening.
	SundaySep 6	98°F36°C Feels 106°F41°C	81°F27°C Feels 89°F31°C	0.02 in0.6 mm· 48%	48%	Drizzle	SE 11 mph18 km/h
DayMostly cloudy and hot, with a high of 98°F36°C and morning low of 81°F27°C — feels like 106°F41°C. Breezy from the SE at 10 to 13 mph17 to 21 km/h. 48% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Breezy from the SE at 12 to 15 mph19 to 24 km/h. 25% chance of drizzle in the evening.
	MondaySep 7	97°F36°C Feels 108°F42°C	81°F27°C Feels 88°F31°C	0.03 in0.7 mm· 64%	46%	Drizzle	SE 11 mph18 km/h
DayMostly cloudy and hot, with a high of 97°F36°C and morning low of 81°F27°C — feels like 108°F42°C. Breezy from the SE at 11 to 14 mph18 to 23 km/h. 64% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Breezy from the SE at 12 to 15 mph19 to 24 km/h. 21% chance of drizzle in the evening.
	TuesdaySep 8	96°F36°C Feels 107°F42°C	81°F27°C Feels 89°F32°C	0.04 in1.1 mm· 55%	44%	Showers	SE 12 mph20 km/h
DayMostly cloudy and hot, with a high of 96°F36°C and morning low of 81°F27°C — feels like 108°F42°C. Breezy from the SE at 13 to 15 mph20 to 25 km/h. 55% chance of showers around midday. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Breezy from the SE at 12 to 15 mph20 to 25 km/h. 26% chance of drizzle in the evening.
	WednesdaySep 9	96°F35°C Feels 107°F41°C	81°F27°C Feels 89°F32°C	0.04 in1.1 mm· 52%	48%	Showers	SE 12 mph20 km/h
DayMostly cloudy and hot, with a high of 96°F35°C and morning low of 81°F27°C — feels like 106°F41°C. Breezy from the SSE at 12 to 15 mph20 to 24 km/h. 52% chance of showers around midday. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Breezy from the SE at 12 to 15 mph20 to 24 km/h. 24% chance of drizzle in the evening.
	ThursdaySep 10	98°F37°C Feels 106°F41°C	81°F27°C Feels 88°F31°C	0.02 in0.4 mm· 20%	40%	Drizzle	SSE 13 mph21 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 13 to 16 mph20 to 25 km/h. 20% 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 13 to 16 mph21 to 26 km/h.
	FridaySep 11	99°F37°C Feels 108°F42°C	80°F27°C	0.01 in0.2 mm· 17%	30%	Drizzle	SSE 13 mph22 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 80°F27°C — feels like 108°F42°C. Windy from the SSE at 13 to 16 mph21 to 26 km/h. 17% 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 14 to 17 mph22 to 27 km/h.
	SaturdaySep 12	97°F36°C Feels 106°F41°C	81°F27°C Feels 87°F31°C	0.02 in0.6 mm· 29%	35%	Drizzle	SSE 13 mph21 km/h
DayPartly cloudy and hot, with a high of 97°F36°C and morning low of 81°F27°C — feels like 106°F41°C. Breezy from the SSE at 13 to 15 mph21 to 25 km/h. 29% 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 13 to 16 mph21 to 26 km/h.
	SundaySep 13	97°F36°C Feels 106°F41°C	81°F27°C Feels 88°F31°C	0.03 in0.8 mm· 32%	38%	Drizzle	SSE 13 mph21 km/h
DayPartly cloudy and hot, with a high of 97°F36°C and morning low of 81°F27°C — feels like 106°F41°C. Windy from the SSE at 13 to 16 mph21 to 25 km/h. 32% 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 13 to 16 mph21 to 26 km/h. 11% chance of drizzle before dawn.
	MondaySep 14	97°F36°C Feels 106°F41°C	81°F27°C Feels 88°F31°C	0.03 in0.8 mm· 31%	41%	Drizzle	SE 13 mph21 km/h
DayPartly cloudy and hot, with a high of 97°F36°C and morning low of 81°F27°C — feels like 106°F41°C. Windy from the SSE at 13 to 16 mph21 to 25 km/h. 31% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Breezy from the SE at 13 to 16 mph20 to 25 km/h. 15% chance of drizzle in the evening.
	TuesdaySep 15	97°F36°C Feels 105°F41°C	80°F27°C	0.03 in0.7 mm· 28%	39%	Drizzle	SE 12 mph19 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 SSE at 12 to 15 mph20 to 24 km/h. 28% 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 12 to 15 mph19 to 24 km/h. 15% chance of drizzle before dawn.
	WednesdaySep 16	97°F36°C Feels 105°F40°C	79°F26°C	0.03 in0.7 mm· 23%	40%	Drizzle	SE 11 mph17 km/h
DayPartly cloudy and hot, with a high of 97°F36°C and morning low of 79°F26°C — feels like 104°F40°C. Breezy from the SE at 11 to 14 mph17 to 22 km/h. 17% chance of drizzle around midday. Heat risk in the afternoon. NightPartly cloudy, with a low around 81°F27°C. Breezy from the SE at 11 to 14 mph18 to 23 km/h. 23% chance of drizzle in the evening.

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