Weather in Idaho City, ID
Idaho City, Sunday, 9 August, 11:18
Clear. Feels like 70°. High 91°, low 53°.
Monthly outlook for Idaho City, ID: average high 92.5°, average low 63°. That is 6.1° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 23 August (101.5°), the coolest 10 August (50.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 88.5° | 82.4° | +3.4° |
| 19 August – 28 August | 99.2° | 79.6° | +10.9° |
| 29 August – 7 September | at normal | 77.5° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Placerville (10 mi).
0Idaho City, Monday, 10 August
Clear. High 89°, low 50°.
0Idaho City, Tuesday, 11 August
Clear. High 93°, low 60°.
0
Idaho City, Wednesday, 12 August
Overcast. High 90°, low 64°.
0Idaho City, Thursday, 13 August
Overcast. High 82°, low 65°.
0.04
Idaho City, Friday, 14 August
Light rain. High 82°, low 59°.
0
Idaho City, Saturday, 15 August
Partly cloudy. High 91°, low 56°.
0Idaho City, Sunday, 16 August
Overcast. High 93°, low 62°.
0Idaho City, Monday, 17 August
Overcast. High 86°, low 67°.
0Idaho City, Tuesday, 18 August
Clear. High 89°, low 61°.
0Idaho City, Wednesday, 19 August
Clear. High 95°, low 63°.
0Idaho City, Thursday, 20 August
Clear. High 99°, low 67°.
0
Idaho City, Friday, 21 August
Mostly clear. High 99°, low 69°.
0Idaho City, Saturday, 22 August
Partly cloudy. High 99°, low 71°.
0Idaho City, Sunday, 23 August
Partly cloudy. High 101°, low 70°.
0Idaho City, Monday, 24 August
Overcast. High 101°, low 70°.
0.03Idaho City, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.02Idaho City, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.04Idaho City, Thursday, 27 August
Climate normal for this date — 60-year average.
0Idaho City, Friday, 28 August
Climate normal for this date — 60-year average.
0.01Idaho City, Saturday, 29 August
Climate normal for this date — 60-year average.
0.04Idaho City, Sunday, 30 August
Climate normal for this date — 60-year average.
0.02Idaho City, Monday, 31 August
Climate normal for this date — 60-year average.
0.02Idaho City, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04Idaho City, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.02Idaho City, Thursday, 3 September
Climate normal for this date — 60-year average.
0.02Idaho City, Friday, 4 September
Climate normal for this date — 60-year average.
0.05Idaho City, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05Idaho City, Sunday, 6 September
Climate normal for this date — 60-year average.
0.04Idaho City, Monday, 7 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 Idaho City, ID 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 Idaho City, ID 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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