Current Conditions

San Francisco, Heredia Province

68°F20°C

Rain

Wind

NNE 2 mph3 km/h

Humidity

93%

Cloud Cover

97%

As of Wednesday, September 2, 2026 at 4:51 PM CST

Today's Outlook

Day

Overcast and warm, with a high of 77°F25°C. Light wind from the NNE around 2 mph4 km/h. 98% chance of rain throughout the day. Humid.

Night

Overcast, with a low around 66°F19°C. Light wind from the NE around 2 mph4 km/h. 76% chance of light rain throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Rain	High 77°F25°C	Low 66°F19°C	Precip 0.27 in6.9 mm98%	Cloud 92%	Wind NNE 2 mph4 km/h	Wednesday: Overcast and warm, with a high of 77°F25°C. Light wind from the NNE around 2 mph4 km/h. 98% chance of rain throughout the day. Humid. Wednesday Night: Overcast, with a low around 66°F19°C. Light wind from the NE around 2 mph4 km/h. 76% chance of light rain throughout the night.
Light Rain	High 78°F25°C	Low 65°F18°C	Precip 0.1 in2.5 mm83%	Cloud 81%	Wind NE 4 mph6 km/h	Thursday: Mostly cloudy and warm, with a high of 78°F25°C and morning low of 65°F18°C. Light wind from the NE around 4 mph7 km/h. 83% chance of light rain around midday. Thursday Night: Overcast, with a low around 65°F18°C. Light wind from the NE around 3 mph5 km/h. 41% chance of drizzle in the evening.
Rain	High 77°F25°C	Low 65°F18°C	Precip 0.2 in5.1 mm99%	Cloud 85%	Wind NE 4 mph6 km/h	Friday: Overcast and warm, with a high of 77°F25°C and morning low of 65°F18°C. Light wind from the NE around 4 mph6 km/h. 99% chance of rain around midday. Humid. Friday Night: Overcast, with a low around 65°F18°C. Light wind from the NE around 3 mph5 km/h. 67% chance of light rain in the evening.
Light Rain	High 76°F25°C	Low 66°F19°C	Precip 0.16 in4.1 mm94%	Cloud 94%	Wind NE 4 mph6 km/h	Saturday: Overcast and warm, with a high of 76°F25°C and morning low of 66°F19°C. Light wind from the NE around 4 mph7 km/h. 94% chance of light rain throughout the day. Humid. Saturday Night: Overcast, with a low around 66°F19°C. Light wind from the NE around 3 mph5 km/h. 62% chance of light rain overnight.
Rain	High 75°F24°C	Low 65°F18°C	Precip 0.55 in13.9 mm100%	Cloud 97%	Wind NE 3 mph4 km/h	Sunday: Overcast and warm, with a high of 75°F24°C and morning low of 65°F18°C. Light wind from the NE around 3 mph4 km/h. 100% chance of rain throughout the day. Humid. Sunday Night: Overcast, with a low around 65°F18°C. Light wind from the ENE around 3 mph4 km/h. 97% chance of rain throughout the night.
Rain	High 77°F25°C	Low 64°F18°C	Precip 0.2 in5 mm93%	Cloud 91%	Wind NE 4 mph6 km/h	Monday: Overcast and warm, with a high of 77°F25°C and morning low of 65°F18°C. Light wind from the NE around 4 mph6 km/h. 93% chance of rain around midday. Humid. Monday Night: Overcast, with a low around 64°F18°C. Light wind from the NE around 3 mph5 km/h. 52% chance of light rain throughout the night.
Light Rain	High 78°F25°C	Low 66°F19°C	Precip 0.06 in1.4 mm71%	Cloud 73%	Wind ENE 5 mph8 km/h	Tuesday: Mostly cloudy and warm, with a high of 78°F25°C and morning low of 66°F19°C. Light wind from the NE around 6 mph9 km/h. 71% chance of showers around midday. Tuesday Night: Mostly cloudy, with a low around 66°F19°C. Light wind from the ENE around 5 mph8 km/h. 38% chance of drizzle in the evening.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	77°F25°C	66°F19°C	0.27 in6.9 mm· 98%	92%	Rain	NNE 2 mph4 km/h
DayOvercast and warm, with a high of 77°F25°C. Light wind from the NNE around 2 mph4 km/h. 98% chance of rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the NE around 2 mph4 km/h. 76% chance of light rain throughout the night.
	ThursdaySep 3	78°F25°C	65°F18°C	0.1 in2.5 mm· 83%	81%	Light Rain	NE 4 mph6 km/h
DayMostly cloudy and warm, with a high of 78°F25°C and morning low of 65°F18°C. Light wind from the NE around 4 mph7 km/h. 83% chance of light rain around midday. NightOvercast, with a low around 65°F18°C. Light wind from the NE around 3 mph5 km/h. 41% chance of drizzle in the evening.
	FridaySep 4	77°F25°C	65°F18°C	0.2 in5.1 mm· 99%	85%	Rain	NE 4 mph6 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 65°F18°C. Light wind from the NE around 4 mph6 km/h. 99% chance of rain around midday. Humid. NightOvercast, with a low around 65°F18°C. Light wind from the NE around 3 mph5 km/h. 67% chance of light rain in the evening.
	SaturdaySep 5	76°F25°C	66°F19°C	0.16 in4.1 mm· 94%	94%	Light Rain	NE 4 mph6 km/h
DayOvercast and warm, with a high of 76°F25°C and morning low of 66°F19°C. Light wind from the NE around 4 mph7 km/h. 94% chance of light rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the NE around 3 mph5 km/h. 62% chance of light rain overnight.
	SundaySep 6	75°F24°C	65°F18°C	0.55 in13.9 mm· 100%	97%	Rain	NE 3 mph4 km/h
DayOvercast and warm, with a high of 75°F24°C and morning low of 65°F18°C. Light wind from the NE around 3 mph4 km/h. 100% chance of rain throughout the day. Humid. NightOvercast, with a low around 65°F18°C. Light wind from the ENE around 3 mph4 km/h. 97% chance of rain throughout the night.
	MondaySep 7	77°F25°C	64°F18°C	0.2 in5 mm· 93%	91%	Rain	NE 4 mph6 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 65°F18°C. Light wind from the NE around 4 mph6 km/h. 93% chance of rain around midday. Humid. NightOvercast, with a low around 64°F18°C. Light wind from the NE around 3 mph5 km/h. 52% chance of light rain throughout the night.
	TuesdaySep 8	78°F25°C	66°F19°C	0.06 in1.4 mm· 71%	73%	Light Rain	ENE 5 mph8 km/h
DayMostly cloudy and warm, with a high of 78°F25°C and morning low of 66°F19°C. Light wind from the NE around 6 mph9 km/h. 71% chance of showers around midday. NightMostly cloudy, with a low around 66°F19°C. Light wind from the ENE around 5 mph8 km/h. 38% chance of drizzle in the evening.
	WednesdaySep 9	77°F25°C	67°F19°C	0.09 in2.2 mm· 57%	73%	Drizzle	NE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 67°F20°C. Breezy from the NE at 7 to 8 mph11 to 13 km/h. 57% chance of drizzle throughout the day. NightMostly cloudy, with a low around 67°F19°C. Light wind from the NE around 5 mph8 km/h. 41% chance of drizzle throughout the night.
	ThursdaySep 10	76°F25°C	67°F19°C	0.15 in3.7 mm· 84%	89%	Light Rain	NE 5 mph8 km/h
DayOvercast and warm, with a high of 76°F25°C and morning low of 67°F19°C. Light wind from the NE around 6 mph9 km/h. 84% chance of light rain throughout the day. Humid. NightOvercast, with a low around 67°F19°C. Light wind from the NE around 5 mph7 km/h. 51% chance of drizzle throughout the night.
	FridaySep 11	76°F25°C	66°F19°C	0.14 in3.6 mm· 89%	87%	Light Rain	NE 5 mph8 km/h
DayOvercast and warm, with a high of 76°F25°C and morning low of 67°F19°C. Light wind from the NE around 5 mph8 km/h. 89% chance of light rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the NE around 4 mph7 km/h. 37% chance of drizzle in the evening.
	SaturdaySep 12	78°F25°C	66°F19°C	0.15 in3.8 mm· 88%	76%	Light Rain	NE 5 mph7 km/h
DayMostly cloudy and warm, with a high of 78°F25°C and morning low of 67°F19°C. Light wind from the NE around 5 mph8 km/h. 88% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 66°F19°C. Light wind from the NE around 4 mph7 km/h. 56% chance of light rain in the evening.
	SundaySep 13	77°F25°C	67°F19°C	0.28 in7.1 mm· 96%	89%	Rain	NE 4 mph6 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 67°F19°C. Light wind from the NE around 4 mph7 km/h. 96% chance of rain throughout the day. Humid. NightOvercast, with a low around 67°F19°C. Light wind from the NE around 4 mph6 km/h. 68% chance of light rain throughout the night.
	MondaySep 14	76°F25°C	66°F19°C	0.3 in7.5 mm· 93%	93%	Rain	NE 4 mph6 km/h
DayOvercast and warm, with a high of 76°F25°C and morning low of 66°F19°C. Light wind from the NE around 4 mph7 km/h. 93% chance of rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the ENE around 4 mph6 km/h. 70% chance of light rain throughout the night.
	TuesdaySep 15	76°F24°C	66°F19°C	0.26 in6.7 mm· 94%	91%	Rain	NE 4 mph6 km/h
DayOvercast and warm, with a high of 76°F24°C and morning low of 66°F19°C. Light wind from the NE around 4 mph7 km/h. 94% chance of rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the NE around 4 mph6 km/h. 65% chance of light rain throughout the night.
	WednesdaySep 16	76°F25°C	65°F19°C	0.26 in6.5 mm· 87%	82%	Rain	NE 4 mph7 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 65°F19°C. Light wind from the NE around 4 mph7 km/h. 87% chance of rain throughout the day. Humid. NightOvercast, with a low around 65°F19°C. Light wind from the NE around 4 mph6 km/h. 60% chance of light rain throughout the night.

Nearby Cities

Heredia1 mi1 km Mercedes Norte1 mi1 km San Pablo2 mi3 km San Juan4 mi6 km Colima4 mi7 km San Rafael5 mi7 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: 9.9938°N, 84.1274°W·Elevation: 1131m·Timezone: America/Costa_Rica·Population: 55,923