Weather in Ahtanum, WA
Ahtanum, Thursday, 22 October, 21:55
Clear. Feels like 52°. High 55°, low 38°.
Monthly outlook for Ahtanum, WA: average high 53°, average low 37.2°. That is 0.5° below the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 23 October (61.3°), the coolest 24 October (28.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 53.7° | 55.5° | -1° |
| 1 November – 10 November | 51.9° | 50.2° | +0.9° |
| 11 November – 20 November | at normal | 46.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Yakima (4 mi).
0
Ahtanum, Friday, 23 October
Clear. High 61°, low 33°.
0
Ahtanum, Saturday, 24 October
Overcast. High 56°, low 29°.
0.11
Ahtanum, Sunday, 25 October
Light rain. High 53°, low 37°.
0.03Ahtanum, Monday, 26 October
Light rain. High 55°, low 37°.
0
Ahtanum, Tuesday, 27 October
Mostly clear. High 59°, low 41°.
0.1Ahtanum, Wednesday, 28 October
Light rain. High 52°, low 37°.
0.15Ahtanum, Thursday, 29 October
Light rain. High 53°, low 40°.
0.12Ahtanum, Friday, 30 October
Light rain. High 43°, low 39°.
0Ahtanum, Saturday, 31 October
Overcast. High 49°, low 36°.
0Ahtanum, Sunday, 1 November
Mostly clear. High 50°, low 36°.
0Ahtanum, Monday, 2 November
Mostly clear. High 50°, low 37°.
0Ahtanum, Tuesday, 3 November
Overcast. High 50°, low 37°.
0
Ahtanum, Wednesday, 4 November
Partly cloudy. High 51°, low 38°.
0Ahtanum, Thursday, 5 November
Partly cloudy. High 54°, low 39°.
0Ahtanum, Friday, 6 November
Overcast. High 56°, low 40°.
0.08
Ahtanum, Saturday, 7 November
Climate normal for this date — 60-year average.
0.05Ahtanum, Sunday, 8 November
Climate normal for this date — 60-year average.
0.05Ahtanum, Monday, 9 November
Climate normal for this date — 60-year average.
0.06Ahtanum, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Ahtanum, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Ahtanum, Thursday, 12 November
Climate normal for this date — 60-year average.
0.08Ahtanum, Friday, 13 November
Climate normal for this date — 60-year average.
0.05Ahtanum, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Ahtanum, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Ahtanum, Monday, 16 November
Climate normal for this date — 60-year average.
0.07Ahtanum, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.05Ahtanum, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.12Ahtanum, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Ahtanum, Friday, 20 November
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 Ahtanum, WA 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 Ahtanum, WA 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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