Current Conditions

La Unión, La Union

78°F26°C

Rain

Wind

E 3 mph4 km/h

Humidity

89%

Cloud Cover

97%

As of Wednesday, September 23, 2026 at 1:19 AM CST

Today's Outlook

Day

Overcast and warm, with a high of 84°F29°C and morning low of 78°F25°C — feels like 93°F34°C. Light wind from the ESE around 3 mph5 km/h. 84% chance of rain throughout the day. Heavy, humid air.

Night

Overcast, with a low around 78°F25°C. Light wind from the E around 3 mph5 km/h. 98% chance of rain throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Rain	High 84°F29°CFeels 94°F34°C	Low 78°F25°C	Precip 0.77 in19.5 mm98%	Cloud 98%	Wind E 3 mph5 km/h	Wednesday: Overcast and warm, with a high of 84°F29°C and morning low of 78°F25°C — feels like 93°F34°C. Light wind from the ESE around 3 mph5 km/h. 84% chance of rain throughout the day. Heavy, humid air. Wednesday Night: Overcast, with a low around 78°F25°C. Light wind from the E around 3 mph5 km/h. 98% chance of rain throughout the night.
Light Rain	High 87°F31°CFeels 99°F37°C	Low 78°F26°C	Precip 0.34 in8.7 mm78%	Cloud 93%	Wind ESE 3 mph5 km/h	Thursday: Overcast and hot, with a high of 87°F31°C and morning low of 78°F26°C — feels like 99°F37°C. Light wind from the SSE around 3 mph5 km/h. 58% chance of light rain throughout the day. Heat risk in the afternoon. Thursday Night: Overcast, with a low around 78°F26°C. Light wind from the E around 3 mph5 km/h. 78% chance of light rain throughout the night.
Rain	High 88°F31°CFeels 99°F37°C	Low 79°F26°C	Precip 0.31 in8 mm68%	Cloud 91%	Wind SE 4 mph6 km/h	Friday: Overcast and hot, with a high of 88°F31°C and morning low of 79°F26°C — feels like 99°F37°C. Light wind from the SE around 4 mph6 km/h. 35% chance of drizzle throughout the day. Heat risk in the afternoon. Friday Night: Overcast, with a low around 79°F26°C. Light wind from the SE around 3 mph5 km/h. 68% chance of rain throughout the night.
Light Rain	High 86°F30°CFeels 97°F36°C	Low 78°F26°C	Precip 0.4 in10.1 mm82%	Cloud 97%	Wind SSE 3 mph5 km/h	Saturday: Overcast and warm, with a high of 86°F30°C and morning low of 78°F26°C — feels like 97°F36°C. Light wind from the SSE around 4 mph6 km/h. 58% chance of light rain throughout the day. Heat risk in the afternoon. Saturday Night: Overcast, with a low around 78°F26°C. Light wind from the SE around 3 mph5 km/h. 82% chance of light rain throughout the night.
Rain	High 86°F30°CFeels 97°F36°C	Low 78°F25°C	Precip 0.46 in11.6 mm88%	Cloud 94%	Wind SSE 3 mph5 km/h	Sunday: Overcast and hot, with a high of 86°F30°C and morning low of 78°F25°C — feels like 97°F36°C. Light wind from the S around 3 mph5 km/h. 65% chance of light rain throughout the day. Heat risk in the afternoon. Sunday Night: Overcast, with a low around 78°F25°C. Light wind from the SE around 3 mph4 km/h. 88% chance of rain throughout the night.
Light Rain	High 87°F31°CFeels 98°F37°C	Low 78°F25°C	Precip 0.36 in9.2 mm75%	Cloud 83%	Wind S 3 mph5 km/h	Monday: Mostly cloudy and hot, with a high of 87°F31°C and morning low of 78°F25°C — feels like 99°F37°C. Light wind from the S around 3 mph5 km/h. 52% chance of light rain throughout the day. Heat risk in the afternoon. Monday Night: Overcast, with a low around 78°F25°C. Light wind from the NE around 3 mph4 km/h. 75% chance of light rain throughout the night.
Light Rain	High 87°F31°CFeels 98°F37°C	Low 78°F25°C	Precip 0.33 in8.3 mm70%	Cloud 84%	Wind SW 3 mph5 km/h	Tuesday: Mostly cloudy and hot, with a high of 87°F31°C and morning low of 78°F25°C — feels like 99°F37°C. Light wind from the SSW around 3 mph5 km/h. 52% chance of light rain throughout the day. Heat risk in the afternoon. Tuesday Night: Overcast, with a low around 78°F26°C. Light wind from the N around 3 mph5 km/h. 70% chance of light rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	84°F29°C Feels 94°F34°C	78°F25°C	0.77 in19.5 mm· 98%	98%	Rain	E 3 mph5 km/h
DayOvercast and warm, with a high of 84°F29°C and morning low of 78°F25°C — feels like 93°F34°C. Light wind from the ESE around 3 mph5 km/h. 84% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 78°F25°C. Light wind from the E around 3 mph5 km/h. 98% chance of rain throughout the night.
	ThursdaySep 24	87°F31°C Feels 99°F37°C	78°F26°C	0.34 in8.7 mm· 78%	93%	Light Rain	ESE 3 mph5 km/h
DayOvercast and hot, with a high of 87°F31°C and morning low of 78°F26°C — feels like 99°F37°C. Light wind from the SSE around 3 mph5 km/h. 58% chance of light rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 78°F26°C. Light wind from the E around 3 mph5 km/h. 78% chance of light rain throughout the night.
	FridaySep 25	88°F31°C Feels 99°F37°C	79°F26°C	0.31 in8 mm· 68%	91%	Rain	SE 4 mph6 km/h
DayOvercast and hot, with a high of 88°F31°C and morning low of 79°F26°C — feels like 99°F37°C. Light wind from the SE around 4 mph6 km/h. 35% chance of drizzle throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 79°F26°C. Light wind from the SE around 3 mph5 km/h. 68% chance of rain throughout the night.
	SaturdaySep 26	86°F30°C Feels 97°F36°C	78°F26°C	0.4 in10.1 mm· 82%	97%	Light Rain	SSE 3 mph5 km/h
DayOvercast and warm, with a high of 86°F30°C and morning low of 78°F26°C — feels like 97°F36°C. Light wind from the SSE around 4 mph6 km/h. 58% chance of light rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 78°F26°C. Light wind from the SE around 3 mph5 km/h. 82% chance of light rain throughout the night.
	SundaySep 27	86°F30°C Feels 97°F36°C	78°F25°C	0.46 in11.6 mm· 88%	94%	Rain	SSE 3 mph5 km/h
DayOvercast and hot, with a high of 86°F30°C and morning low of 78°F25°C — feels like 97°F36°C. Light wind from the S around 3 mph5 km/h. 65% chance of light rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 78°F25°C. Light wind from the SE around 3 mph4 km/h. 88% chance of rain throughout the night.
	MondaySep 28	87°F31°C Feels 98°F37°C	78°F25°C	0.36 in9.2 mm· 75%	83%	Light Rain	S 3 mph5 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 78°F25°C — feels like 99°F37°C. Light wind from the S around 3 mph5 km/h. 52% chance of light rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 78°F25°C. Light wind from the NE around 3 mph4 km/h. 75% chance of light rain throughout the night.
	TuesdaySep 29	87°F31°C Feels 98°F37°C	78°F25°C	0.33 in8.3 mm· 70%	84%	Light Rain	SW 3 mph5 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 78°F25°C — feels like 99°F37°C. Light wind from the SSW around 3 mph5 km/h. 52% chance of light rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 78°F26°C. Light wind from the N around 3 mph5 km/h. 70% chance of light rain throughout the night.
	WednesdaySep 30	88°F31°C Feels 99°F37°C	78°F25°C	0.26 in6.6 mm· 69%	71%	Light Rain	S 3 mph5 km/h
DayMostly cloudy and hot, with a high of 88°F31°C and morning low of 78°F25°C — feels like 99°F37°C. Light wind from the SSW around 3 mph5 km/h. 45% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 78°F26°C. Light wind from the NNE around 3 mph5 km/h. 69% chance of light rain throughout the night.
	ThursdayOct 1	87°F31°C Feels 98°F36°C	78°F25°C	0.28 in7.1 mm· 73%	78%	Light Rain	SE 3 mph5 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 78°F25°C — feels like 97°F36°C. Light wind from the SSE around 4 mph6 km/h. 44% chance of light rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 78°F26°C. Light wind from the E around 3 mph5 km/h. 73% chance of light rain throughout the night.
	FridayOct 2	87°F30°C Feels 98°F37°C	78°F26°C	0.47 in12 mm· 81%	88%	Rain	SE 3 mph5 km/h
DayOvercast and hot, with a high of 87°F30°C and morning low of 78°F26°C — feels like 99°F37°C. Light wind from the SE around 3 mph5 km/h. 53% chance of light rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 78°F26°C. Light wind from the E around 3 mph4 km/h. 81% chance of rain throughout the night.
	SaturdayOct 3	86°F30°C Feels 97°F36°C	78°F26°C	0.74 in18.9 mm· 90%	94%	Rain	SE 3 mph5 km/h
DayOvercast and warm, with a high of 86°F30°C and morning low of 78°F26°C — feels like 97°F36°C. Light wind from the SE around 4 mph6 km/h. 70% chance of light rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 78°F26°C. Light wind from the ESE around 3 mph5 km/h. 90% chance of rain throughout the night.
	SundayOct 4	85°F29°C Feels 95°F35°C	78°F25°C	0.97 in24.6 mm· 90%	94%	Rain	SE 4 mph6 km/h
DayOvercast and warm, with a high of 85°F29°C and morning low of 78°F26°C — feels like 95°F35°C. Light wind from the SE around 4 mph6 km/h. 72% chance of rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 78°F25°C. Light wind from the ESE around 3 mph5 km/h. 90% chance of rain throughout the night.
	MondayOct 5	85°F29°C Feels 94°F35°C	78°F25°C	1.03 in26.1 mm· 89%	93%	Rain	SE 4 mph7 km/h
DayOvercast and warm, with a high of 85°F29°C and morning low of 78°F25°C — feels like 95°F35°C. Light wind from the SE around 4 mph7 km/h. 71% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 78°F25°C. Light wind from the ESE around 4 mph6 km/h. 89% chance of rain throughout the night.
	TuesdayOct 6	85°F29°C Feels 95°F35°C	78°F25°C	0.91 in23.2 mm· 78%	91%	Rain	SE 4 mph6 km/h
DayOvercast and warm, with a high of 85°F29°C and morning low of 78°F25°C — feels like 95°F35°C. Light wind from the SE around 4 mph7 km/h. 67% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 78°F25°C. Light wind from the ESE around 4 mph6 km/h. 78% chance of rain throughout the night.
	WednesdayOct 7	86°F30°C Feels 96°F36°C	78°F25°C	0.57 in14.6 mm· 68%	88%	Rain	SSE 4 mph6 km/h
DayOvercast and hot, with a high of 86°F30°C and morning low of 78°F25°C — feels like 97°F36°C. Light wind from the S around 4 mph6 km/h. 47% chance of light rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 78°F25°C. Light wind from the SSE around 3 mph5 km/h. 68% chance of rain throughout the night.

Nearby Cities

San Miguel25 mi40 km San Francisco30 mi49 km San Rafael Oriente34 mi55 km Usulután40 mi65 km Santiago de María43 mi69 km Puerto El Triunfo48 mi77 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.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

Pattern	Example	Description
/weather/{country}/{city}/	/weather/united-states/san-francisco/	City forecast (canonical URL)
/weather/{city}/	/weather/tokyo/	Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}	/weather/nearby?lat=48.1&lon=11.5	Find nearest city by coordinates
/weather/{country}/	/weather/germany/	Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 13.3392°N, 87.8433°W·Elevation: 10m·Timezone: America/El_Salvador·Population: 26,807