Weather in Hartline, WA
Hartline, Sunday, 18 October, 06:58
Clear. Feels like 29°. High 61°, low 33°.
Monthly outlook for Hartline, WA: average high 52.7°, average low 36.7°. That is 0.1° below the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 21 October (66.9°), the coolest 30 October (26.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 57.4° | 55° | +1.3° |
| 28 October – 6 November | 44.9° | 48.5° | -2° |
| 7 November – 16 November | at normal | 44.5° | — |
October records over 66 years
0
Hartline, Monday, 19 October
Overcast. High 61°, low 39°.
0
Hartline, Tuesday, 20 October
Clear. High 66°, low 43°.
0Hartline, Wednesday, 21 October
Clear. High 67°, low 45°.
0.01
Hartline, Thursday, 22 October
Light rain. High 59°, low 47°.
0Hartline, Friday, 23 October
Clear. High 55°, low 42°.
0Hartline, Saturday, 24 October
Overcast. High 52°, low 37°.
0Hartline, Sunday, 25 October
Overcast. High 52°, low 40°.
0.01Hartline, Monday, 26 October
Light rain. High 50°, low 36°.
0Hartline, Tuesday, 27 October
Overcast. High 50°, low 37°.
0Hartline, Wednesday, 28 October
Clear. High 47°, low 32°.
0
Hartline, Thursday, 29 October
Partly cloudy. High 43°, low 32°.
0
Hartline, Friday, 30 October
Mostly clear. High 43°, low 27°.
0Hartline, Saturday, 31 October
Clear. High 45°, low 27°.
0.05Hartline, Sunday, 1 November
Light rain. High 49°, low 36°.
0.46
Hartline, Monday, 2 November
Snow. High 42°, low 35°.
0.04Hartline, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.08
Hartline, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.05Hartline, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Hartline, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Hartline, Saturday, 7 November
Climate normal for this date — 60-year average.
0.05Hartline, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Hartline, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Hartline, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Hartline, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Hartline, Thursday, 12 November
Climate normal for this date — 60-year average.
0.08Hartline, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Hartline, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Hartline, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07Hartline, Monday, 16 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 Hartline, 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 Hartline, 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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