Weather in May, ID
May, Wednesday, 7 October, 03:44
Clear. Feels like 48°. High 78°, low 43°.
Monthly outlook for May, ID: average high 61.3°, average low 39.8°. That is 2.7° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 7 October (77.9°), the coolest 15 October (28.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 7 October – 16 October | 61.3° | 57.4° | +2.2° |
| 17 October – 26 October | 61.4° | 53.7° | +4.3° |
| 27 October – 5 November | at normal | 46.6° | — |
October records over 66 years
0
May, Thursday, 8 October
Clear. High 77°, low 40°.
0May, Friday, 9 October
Clear. High 77°, low 51°.
0.09
May, Saturday, 10 October
Light rain. High 61°, low 48°.
0
May, Sunday, 11 October
Overcast. High 50°, low 40°.
0May, Monday, 12 October
Overcast. High 53°, low 34°.
0.02May, Tuesday, 13 October
Light rain. High 66°, low 49°.
0.03
May, Wednesday, 14 October
Snow. High 49°, low 38°.
0May, Thursday, 15 October
Clear. High 46°, low 28°.
0May, Friday, 16 October
Overcast. High 57°, low 30°.
0
May, Saturday, 17 October
Partly cloudy. High 61°, low 41°.
0May, Sunday, 18 October
Clear. High 62°, low 38°.
0
May, Monday, 19 October
Mostly clear. High 65°, low 42°.
0May, Tuesday, 20 October
Mostly clear. High 62°, low 40°.
0May, Wednesday, 21 October
Clear. High 59°, low 36°.
0May, Thursday, 22 October
Clear. High 60°, low 37°.
0.06May, Friday, 23 October
Climate normal for this date — 60-year average.
0.03May, Saturday, 24 October
Climate normal for this date — 60-year average.
0.04May, Sunday, 25 October
Climate normal for this date — 60-year average.
0.06May, Monday, 26 October
Climate normal for this date — 60-year average.
0.03May, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06May, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.04May, Thursday, 29 October
Climate normal for this date — 60-year average.
0.04May, Friday, 30 October
Climate normal for this date — 60-year average.
0.03May, Saturday, 31 October
Climate normal for this date — 60-year average.
0.04May, Sunday, 1 November
Climate normal for this date — 60-year average.
0.04
May, Monday, 2 November
Climate normal for this date — 60-year average.
0.03May, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.04May, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04May, Thursday, 5 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 May, 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 May, 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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