Weather in Idaho Falls, ID
Idaho Falls, Sunday, 9 August, 03:32
Clear. Feels like 65°. High 96°, low 63°.
Monthly outlook for Idaho Falls, ID: average high 86.9°, average low 59.8°. That is 1.1° above the climate normal for August. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 11 August (98.2°), the coolest 15 August (55.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 87.9° | 85.8° | +1.2° |
| 19 August – 28 August | 85.1° | 83.4° | +1° |
| 29 August – 7 September | at normal | 80.9° | — |
August records over 66 years
0
Idaho Falls, Monday, 10 August
Clear. High 96°, low 57°.
0
Idaho Falls, Tuesday, 11 August
Mostly clear. High 98°, low 61°.
0
Idaho Falls, Wednesday, 12 August
Overcast. High 90°, low 64°.
0.02
Idaho Falls, Thursday, 13 August
Light rain. High 86°, low 58°.
0.23Idaho Falls, Friday, 14 August
Rain. High 78°, low 57°.
0.02Idaho Falls, Saturday, 15 August
Light rain. High 87°, low 56°.
0.02Idaho Falls, Sunday, 16 August
Light rain. High 73°, low 63°.
0.01Idaho Falls, Monday, 17 August
Light rain. High 87°, low 59°.
0Idaho Falls, Tuesday, 18 August
Overcast. High 88°, low 59°.
0
Idaho Falls, Wednesday, 19 August
Partly cloudy. High 90°, low 59°.
0.04Idaho Falls, Thursday, 20 August
Light rain. High 89°, low 64°.
0.22Idaho Falls, Friday, 21 August
Rain. High 77°, low 61°.
0Idaho Falls, Saturday, 22 August
Light rain. High 84°, low 60°.
0Idaho Falls, Sunday, 23 August
Overcast. High 81°, low 58°.
0Idaho Falls, Monday, 24 August
Partly cloudy. High 89°, low 58°.
0.02Idaho Falls, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.01Idaho Falls, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.02Idaho Falls, Thursday, 27 August
Climate normal for this date — 60-year average.
0.02Idaho Falls, Friday, 28 August
Climate normal for this date — 60-year average.
0.02Idaho Falls, Saturday, 29 August
Climate normal for this date — 60-year average.
0.01Idaho Falls, Sunday, 30 August
Climate normal for this date — 60-year average.
0.02Idaho Falls, Monday, 31 August
Climate normal for this date — 60-year average.
0.03Idaho Falls, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04Idaho Falls, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.02Idaho Falls, Thursday, 3 September
Climate normal for this date — 60-year average.
0.04Idaho Falls, Friday, 4 September
Climate normal for this date — 60-year average.
0.03Idaho Falls, Saturday, 5 September
Climate normal for this date — 60-year average.
0.03Idaho Falls, Sunday, 6 September
Climate normal for this date — 60-year average.
0.03Idaho Falls, 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 Falls, 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 Falls, 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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