San Luis weather forecast

Conditions in San Luis at the moment: light drizzle, 31 °C. It feels warmer than it reads, more like 37 °C. Wind is from the S at 6 km/h, gusting to 23 km/h. Precipitation in the last hour measured 0.1 mm. Humidity stands at 66% with sea-level pressure near 1005 hPa.

At a glance

Today looks like thunderstorm; temperatures run from 25 °C up to 34 °C. Rain chance peaks at 96% with around 2.7 mm possible. Tomorrow looks like thunderstorm with slight hail; temperatures run from 26 °C up to 34 °C. Rain chance peaks at 55% with around 1.8 mm possible. Wednesday looks like thunderstorm; temperatures run from 26 °C up to 32 °C. Rain chance peaks at 82% with around 2.1 mm possible. Gusts may reach 46 km/h from the SW.

Soil temperatures today read surface 26.8 °C, 6 cm 29.6 °C, 18 cm 31.5 °C, 54 cm 30.7 °C. Soil moisture sits at 0-1 cm at 0.21 m³/m³, 3-9 cm at 0.21 m³/m³, 27-81 cm at 0.2 m³/m³. For wheat, the root-zone reading is within the ideal 0.2-0.35 m³/m³ band. Forecast rain (27 mm) roughly covers crop water demand (ET0 31 mm), so irrigation can likely be paused. A suitable spraying window opens around 06:00 on 2026-06-22, with winds at or below 15 km/h and no rain expected. Heat stress is likely for wheat with highs reaching 34 °C (threshold 32 °C). Projected growing degree days over the next week: wheat 171, maize 133.

Topsoil moisture

0.241 m³/m³

Soil temp

25°C

ET₀ today

5.04 mm

Spray window

~5:00

Rain (next 7d)

27.1 mm

Wind

6 km/h

Humidity

91%

Full farming outlook for San Luis →

Weather alerts for San Luis (derived from forecast data, not official warnings): Extreme heat today: feels-like temperatures up to 41 °C. Extreme heat Sunday: feels-like temperatures up to 40 °C.

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