Heppner, Saturday, 8 August, 16:56
Partly cloudy. Feels like 88°. High 92°, low 59°.
Heppner, Sunday, 9 August
Clear. High 86°, low 59°.
Heppner, Monday, 10 August
Clear. High 87°, low 54°.
Heppner, Tuesday, 11 August
Clear. High 88°, low 63°.
Heppner, Wednesday, 12 August
Clear. High 83°, low 64°.
Heppner, Thursday, 13 August
Clear. High 82°, low 61°.
Heppner, Friday, 14 August
Overcast. High 84°, low 59°.
Heppner, Saturday, 15 August
Overcast. High 85°, low 70°.
Heppner, Sunday, 16 August
Clear. High 89°, low 64°.
Heppner, Monday, 17 August
Overcast. High 92°, low 67°.
Heppner, Tuesday, 18 August
Clear. High 89°, low 71°.
Heppner, Wednesday, 19 August
Overcast. High 86°, low 67°.
Heppner, Thursday, 20 August
Clear. High 89°, low 66°.
Heppner, Friday, 21 August
Partly cloudy. High 89°, low 67°.
Heppner, Saturday, 22 August
Clear. High 91°, low 67°.
Heppner, Sunday, 23 August
Light rain. High 96°, low 71°.
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Heppner, OR are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
They are real temperature extremes recorded in Heppner, OR since 1960: the highest and lowest reading for each calendar date, with the year it happened.
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.