Current Conditions

San Marcos, San Marcos

73°F23°C

Rain

Wind

SSE 3 mph5 km/h

Humidity

58%

Cloud Cover

97%

As of Wednesday, September 2, 2026 at 11:36 AM CST

Today's Outlook

Day

Overcast and warm, with a high of 73°F23°C and morning low of 58°F15°C. Light wind from the ESE around 3 mph4 km/h. 95% chance of light rain around midday.

Night

Overcast, with a low around 63°F17°C. Light wind from the ENE around 2 mph3 km/h. 90% chance of rain throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Rain	High 73°F23°C	Low 58°F15°C	Precip 0.27 in6.9 mm95%	Cloud 96%	Wind E 2 mph4 km/h	Wednesday: Overcast and warm, with a high of 73°F23°C and morning low of 58°F15°C. Light wind from the ESE around 3 mph4 km/h. 95% chance of light rain around midday. Wednesday Night: Overcast, with a low around 63°F17°C. Light wind from the ENE around 2 mph3 km/h. 90% chance of rain throughout the night.
Rain	High 71°F22°C	Low 59°F15°C	Precip 0.64 in16.3 mm98%	Cloud 96%	Wind E 2 mph4 km/h	Thursday: Overcast and warm, with a high of 71°F22°C and morning low of 59°F15°C. Light wind from the ESE around 3 mph4 km/h. 98% chance of rain throughout the day. Thursday Night: Overcast, with a low around 60°F15°C. Light wind from the NE around 2 mph4 km/h. 96% chance of rain throughout the night.
Rain	High 73°F23°C	Low 59°F15°C	Precip 0.71 in18.1 mm99%	Cloud 75%	Wind ENE 2 mph4 km/h	Friday: Mostly cloudy and warm, with a high of 73°F23°C and morning low of 59°F15°C. Light wind from the SE around 3 mph4 km/h. 99% chance of rain around midday. Friday Night: Overcast, with a low around 60°F16°C. Light wind from the NE around 2 mph4 km/h. 99% chance of rain throughout the night.
Rain	High 71°F22°C	Low 59°F15°C	Precip 0.72 in18.2 mm100%	Cloud 87%	Wind ENE 2 mph4 km/h	Saturday: Overcast and warm, with a high of 71°F22°C and morning low of 59°F15°C. Light wind from the SSE around 3 mph4 km/h. 100% chance of rain around midday. Saturday Night: Overcast, with a low around 60°F15°C. Light wind from the NE around 2 mph3 km/h. 99% chance of rain throughout the night.
Rain	High 72°F22°C	Low 60°F15°C	Precip 0.41 in10.5 mm94%	Cloud 94%	Wind E 2 mph4 km/h	Sunday: Overcast and warm, with a high of 72°F22°C and morning low of 60°F15°C. Light wind from the SE around 3 mph4 km/h. 94% chance of rain throughout the day. Sunday Night: Overcast, with a low around 60°F16°C. Light wind from the NE around 2 mph3 km/h. 90% chance of rain throughout the night.
Rain	High 73°F23°C	Low 59°F15°C	Precip 0.33 in8.5 mm98%	Cloud 91%	Wind ENE 3 mph4 km/h	Monday: Overcast and warm, with a high of 73°F23°C and morning low of 59°F15°C. Light wind from the ESE around 3 mph5 km/h. 98% chance of rain around midday. Monday Night: Overcast, with a low around 59°F15°C. Light wind from the NE around 2 mph4 km/h. 90% chance of rain throughout the night.
Rain	High 72°F22°C	Low 60°F15°C	Precip 0.46 in11.8 mm98%	Cloud 95%	Wind ENE 3 mph5 km/h	Tuesday: Overcast and warm, with a high of 72°F22°C and morning low of 60°F15°C. Light wind from the E around 3 mph5 km/h. 98% chance of rain throughout the day. Tuesday Night: Overcast, with a low around 60°F15°C. Light wind from the NE around 3 mph5 km/h. 76% chance of light rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	73°F23°C	58°F15°C	0.27 in6.9 mm· 95%	96%	Rain	E 2 mph4 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 58°F15°C. Light wind from the ESE around 3 mph4 km/h. 95% chance of light rain around midday. NightOvercast, with a low around 63°F17°C. Light wind from the ENE around 2 mph3 km/h. 90% chance of rain throughout the night.
	ThursdaySep 3	71°F22°C	59°F15°C	0.64 in16.3 mm· 98%	96%	Rain	E 2 mph4 km/h
DayOvercast and warm, with a high of 71°F22°C and morning low of 59°F15°C. Light wind from the ESE around 3 mph4 km/h. 98% chance of rain throughout the day. NightOvercast, with a low around 60°F15°C. Light wind from the NE around 2 mph4 km/h. 96% chance of rain throughout the night.
	FridaySep 4	73°F23°C	59°F15°C	0.71 in18.1 mm· 99%	75%	Rain	ENE 2 mph4 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 59°F15°C. Light wind from the SE around 3 mph4 km/h. 99% chance of rain around midday. NightOvercast, with a low around 60°F16°C. Light wind from the NE around 2 mph4 km/h. 99% chance of rain throughout the night.
	SaturdaySep 5	71°F22°C	59°F15°C	0.72 in18.2 mm· 100%	87%	Rain	ENE 2 mph4 km/h
DayOvercast and warm, with a high of 71°F22°C and morning low of 59°F15°C. Light wind from the SSE around 3 mph4 km/h. 100% chance of rain around midday. NightOvercast, with a low around 60°F15°C. Light wind from the NE around 2 mph3 km/h. 99% chance of rain throughout the night.
	SundaySep 6	72°F22°C	60°F15°C	0.41 in10.5 mm· 94%	94%	Rain	E 2 mph4 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 60°F15°C. Light wind from the SE around 3 mph4 km/h. 94% chance of rain throughout the day. NightOvercast, with a low around 60°F16°C. Light wind from the NE around 2 mph3 km/h. 90% chance of rain throughout the night.
	MondaySep 7	73°F23°C	59°F15°C	0.33 in8.5 mm· 98%	91%	Rain	ENE 3 mph4 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 59°F15°C. Light wind from the ESE around 3 mph5 km/h. 98% chance of rain around midday. NightOvercast, with a low around 59°F15°C. Light wind from the NE around 2 mph4 km/h. 90% chance of rain throughout the night.
	TuesdaySep 8	72°F22°C	60°F15°C	0.46 in11.8 mm· 98%	95%	Rain	ENE 3 mph5 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 60°F15°C. Light wind from the E around 3 mph5 km/h. 98% chance of rain throughout the day. NightOvercast, with a low around 60°F15°C. Light wind from the NE around 3 mph5 km/h. 76% chance of light rain throughout the night.
	WednesdaySep 9	75°F24°C	60°F15°C	0.07 in1.8 mm· 66%	62%	Showers	ENE 4 mph6 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 60°F15°C. Light wind from the E around 4 mph7 km/h. 66% chance of showers around midday. NightMostly cloudy, with a low around 60°F16°C. Light wind from the NE around 3 mph6 km/h. 38% chance of drizzle overnight.
	ThursdaySep 10	75°F24°C	59°F15°C	0.08 in2.1 mm· 79%	44%	Showers	ENE 4 mph6 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 59°F15°C. Light wind from the ENE around 4 mph6 km/h. 79% chance of showers around midday. NightPartly cloudy, with a low around 59°F15°C. Light wind from the NE around 4 mph6 km/h. 50% chance of showers in the evening.
	FridaySep 11	74°F23°C	58°F14°C	0.15 in3.8 mm· 92%	46%	Showers	ENE 3 mph5 km/h
DayPartly cloudy and warm, with a high of 74°F23°C and morning low of 58°F14°C. Light wind from the E around 3 mph5 km/h. 92% chance of showers around midday. NightPartly cloudy, with a low around 59°F15°C. Light wind from the NE around 3 mph5 km/h. 68% chance of showers in the evening.
	SaturdaySep 12	74°F23°C	58°F15°C	0.24 in6.1 mm· 93%	52%	Rain	ENE 3 mph5 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 58°F15°C. Light wind from the E around 3 mph5 km/h. 93% chance of rain around midday. NightMostly cloudy, with a low around 59°F15°C. Light wind from the NE around 3 mph5 km/h. 79% chance of showers in the evening.
	SundaySep 13	72°F22°C	59°F15°C	0.41 in10.3 mm· 97%	70%	Rain	ENE 3 mph4 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 59°F15°C. Light wind from the E around 3 mph4 km/h. 97% chance of rain around midday. NightMostly cloudy, with a low around 60°F15°C. Light wind from the NE around 3 mph4 km/h. 89% chance of rain throughout the night.
	MondaySep 14	72°F22°C	59°F15°C	0.52 in13.3 mm· 93%	88%	Rain	ENE 3 mph4 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 59°F15°C. Light wind from the E around 3 mph5 km/h. 93% chance of rain throughout the day. NightOvercast, with a low around 60°F15°C. Light wind from the NE around 3 mph4 km/h. 88% chance of rain throughout the night.
	TuesdaySep 15	71°F22°C	60°F15°C	0.48 in12.3 mm· 97%	90%	Rain	ENE 3 mph4 km/h
DayOvercast and warm, with a high of 71°F22°C and morning low of 60°F15°C. Light wind from the E around 3 mph4 km/h. 97% chance of rain throughout the day. NightOvercast, with a low around 60°F15°C. Light wind from the NE around 3 mph4 km/h. 85% chance of rain throughout the night.
	WednesdaySep 16	72°F22°C	59°F15°C	0.41 in10.4 mm· 95%	83%	Rain	ENE 3 mph5 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 59°F15°C. Light wind from the E around 3 mph5 km/h. 95% chance of rain throughout the day. NightOvercast, with a low around 59°F15°C. Light wind from the NE around 3 mph5 km/h. 85% chance of rain throughout the night.

Nearby Cities

San Pedro Sacatepéquez2 mi4 km Comitancillo9 mi15 km Cabricán12 mi20 km Ostuncalco13 mi21 km La Esperanza17 mi27 km Malacatán18 mi29 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: 14.9644°N, 91.7949°W·Elevation: 2380m·Timezone: America/Guatemala·Population: 47,063