Weather in Rock Island, WA
Rock Island, Sunday, 9 August, 02:30
Clear. Feels like 68°. High 89°, low 65°.
0
Rock Island, Monday, 10 August
Clear. High 90°, low 60°.
0Rock Island, Tuesday, 11 August
Clear. High 95°, low 60°.
0Rock Island, Wednesday, 12 August
Clear. High 94°, low 64°.
0Rock Island, Thursday, 13 August
Clear. High 93°, low 64°.
0
Rock Island, Friday, 14 August
Mostly clear. High 94°, low 68°.
0Rock Island, Saturday, 15 August
Clear. High 97°, low 68°.
0
Rock Island, Sunday, 16 August
Overcast. High 93°, low 67°.
0.23
Rock Island, Monday, 17 August
Rain. High 73°, low 61°.
0Rock Island, Tuesday, 18 August
Overcast. High 83°, low 57°.
0
Rock Island, Wednesday, 19 August
Partly cloudy. High 84°, low 61°.
0Rock Island, Thursday, 20 August
Light rain. High 88°, low 67°.
0.01Rock Island, Friday, 21 August
Light rain. High 84°, low 66°.
0.07Rock Island, Saturday, 22 August
Light rain. High 76°, low 62°.
0Rock Island, Sunday, 23 August
Partly cloudy. High 84°, low 58°.
0.13Rock Island, Monday, 24 August
Light rain. High 66°, low 62°.
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 Rock Island, 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 Rock Island, 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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