Weather in Irwin, WA
Irwin, Wednesday, 14 October, 19:59
Mostly clear. Feels like 49°. High 64°, low 38°.
Monthly outlook for Irwin, WA: average high 58.8°, average low 39.5°. That is 1.4° above the climate normal for October. Precipitation is expected on 1 day (about 0.0 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 16 October (71.6°), the coolest 24 October (33.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 October – 23 October | 61.3° | 58.2° | +1.7° |
| 24 October – 2 November | 54.7° | 51.6° | +1.7° |
| 3 November – 12 November | at normal | 46.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Spokane Valley (2 mi).
0
Irwin, Thursday, 15 October
Clear. High 68°, low 40°.
0
Irwin, Friday, 16 October
Overcast. High 72°, low 41°.
0Irwin, Saturday, 17 October
Overcast. High 66°, low 42°.
0Irwin, Sunday, 18 October
Clear. High 63°, low 38°.
0Irwin, Monday, 19 October
Overcast. High 62°, low 41°.
0Irwin, Tuesday, 20 October
Overcast. High 59°, low 42°.
0Irwin, Wednesday, 21 October
Clear. High 57°, low 40°.
0.01
Irwin, Thursday, 22 October
Light rain. High 55°, low 44°.
0Irwin, Friday, 23 October
Overcast. High 48°, low 36°.
0Irwin, Saturday, 24 October
Clear. High 50°, low 34°.
0Irwin, Sunday, 25 October
Overcast. High 51°, low 37°.
0Irwin, Monday, 26 October
Overcast. High 53°, low 38°.
0Irwin, Tuesday, 27 October
Overcast. High 60°, low 40°.
0Irwin, Wednesday, 28 October
Clear. High 58°, low 41°.
0.04Irwin, Thursday, 29 October
Light rain. High 55°, low 42°.
0.07
Irwin, Friday, 30 October
Climate normal for this date — 60-year average.
0.09Irwin, Saturday, 31 October
Climate normal for this date — 60-year average.
0.1
Irwin, Sunday, 1 November
Climate normal for this date — 60-year average.
0.1Irwin, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Irwin, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.14Irwin, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.08Irwin, Thursday, 5 November
Climate normal for this date — 60-year average.
0.1Irwin, Friday, 6 November
Climate normal for this date — 60-year average.
0.13Irwin, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07Irwin, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Irwin, Monday, 9 November
Climate normal for this date — 60-year average.
0.09Irwin, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.09Irwin, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.11Irwin, Thursday, 12 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 Irwin, 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 Irwin, 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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