Olten farming weather

Soil temperatures today read surface 19.9 °C, 6 cm 23.5 °C, 18 cm 23.2 °C, 54 cm 17.6 °C. Soil moisture sits at 0-1 cm at 0.1 m³/m³, 3-9 cm at 0.12 m³/m³, 27-81 cm at 0.2 m³/m³. For wheat, the root-zone reading is below the ideal 0.2-0.35 m³/m³ band. Reference evapotranspiration totals 41 mm against only 3 mm of expected rain — a 38 mm deficit, so irrigation will be needed this week. A suitable spraying window opens around 06:00 on 2026-06-21, with winds at or below 15 km/h and no rain expected. Heat stress is likely for wheat with highs reaching 37 °C (threshold 32 °C). Heat stress is likely for maize with highs reaching 37 °C (threshold 35 °C). Projected growing degree days over the next week: wheat 157, maize 118.

Soil temperatures today read surface 19.9 °C, 6 cm 23.5 °C, 18 cm 23.2 °C, 54 cm 17.6 °C. Soil moisture sits at 0-1 cm at 0.1 m³/m³, 3-9 cm at 0.12 m³/m³, 27-81 cm at 0.2 m³/m³. For wheat, the root-zone reading is below the ideal 0.2-0.35 m³/m³ band. Reference evapotranspiration totals 41 mm against only 3 mm of expected rain — a 38 mm deficit, so irrigation will be needed this week. A suitable spraying window opens around 06:00 on 2026-06-21, with winds at or below 15 km/h and no rain expected. Heat stress is likely for wheat with highs reaching 37 °C (threshold 32 °C). Heat stress is likely for maize with highs reaching 37 °C (threshold 35 °C). Projected growing degree days over the next week: wheat 157, maize 118.

Topsoil moisture

0.099 m³/m³

Soil temp

17°C

ET₀ today

5.85 mm

Spray window

~5:00

Rain (next 7d)

2.8 mm

Wind

7 km/h

Humidity

25%

Full farming outlook for Olten →

Today looks like slight rain showers; temperatures run from 15 °C up to 35 °C. Tomorrow brings overcast with a high of 36 °C and a low of 16 °C. Tuesday brings overcast with a high of 34 °C and a low of 17 °C.