Weather in Lake Oswego, OR
Lake Oswego, Saturday, 8 August, 22:57
Clear. Feels like 69°. High 89°, low 57°.
Monthly outlook for Lake Oswego, OR: average high 87.2°, average low 59.3°. That is 3.1° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 16 August (94.1°), the coolest 10 August (51.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 88.3° | 82.7° | +3.1° |
| 18 August – 27 August | 85.5° | 79.9° | +3.1° |
| 28 August – 6 September | at normal | 78.5° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Metzger (4 mi).
0
Lake Oswego, Sunday, 9 August
Mostly clear. High 84°, low 54°.
0
Lake Oswego, Monday, 10 August
Clear. High 85°, low 52°.
0Lake Oswego, Tuesday, 11 August
Clear. High 87°, low 58°.
0Lake Oswego, Wednesday, 12 August
Clear. High 83°, low 60°.
0Lake Oswego, Thursday, 13 August
Clear. High 87°, low 56°.
0Lake Oswego, Friday, 14 August
Clear. High 93°, low 60°.
0
Lake Oswego, Saturday, 15 August
Overcast. High 93°, low 64°.
0Lake Oswego, Sunday, 16 August
Clear. High 94°, low 65°.
0Lake Oswego, Monday, 17 August
Overcast. High 90°, low 64°.
0Lake Oswego, Tuesday, 18 August
Overcast. High 87°, low 62°.
0Lake Oswego, Wednesday, 19 August
Overcast. High 85°, low 61°.
0Lake Oswego, Thursday, 20 August
Clear. High 84°, low 60°.
0Lake Oswego, Friday, 21 August
Mostly clear. High 85°, low 58°.
0
Lake Oswego, Saturday, 22 August
Partly cloudy. High 89°, low 59°.
0Lake Oswego, Sunday, 23 August
Partly cloudy. High 83°, low 59°.
0.06Lake Oswego, Monday, 24 August
Climate normal for this date — 60-year average.
0.04Lake Oswego, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.02Lake Oswego, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.02Lake Oswego, Thursday, 27 August
Climate normal for this date — 60-year average.
0.02Lake Oswego, Friday, 28 August
Climate normal for this date — 60-year average.
0.06Lake Oswego, Saturday, 29 August
Climate normal for this date — 60-year average.
0.04Lake Oswego, Sunday, 30 August
Climate normal for this date — 60-year average.
0.03Lake Oswego, Monday, 31 August
Climate normal for this date — 60-year average.
0.05Lake Oswego, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04Lake Oswego, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.04Lake Oswego, Thursday, 3 September
Climate normal for this date — 60-year average.
0.03Lake Oswego, Friday, 4 September
Climate normal for this date — 60-year average.
0.03Lake Oswego, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05Lake Oswego, Sunday, 6 September
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
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 Lake Oswego, OR are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
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.
Where do the 66-year records come from?
They are real temperature extremes recorded in Lake Oswego, OR since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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