Weather in Merna, WY
Merna, Tuesday, 20 October, 14:21
Partly cloudy. Feels like 55°. High 57°, low 36°.
Monthly outlook for Merna, WY: average high 48.8°, average low 32.2°. That is 3° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 21 October (59.5°), the coolest 27 October (24.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 51.2° | 45.6° | +3.1° |
| 30 October – 8 November | 44.7° | 39.3° | +3° |
| 9 November – 18 November | at normal | 34.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Halfway (10 mi).
0.09
Merna, Wednesday, 21 October
Light rain. High 59°, low 35°.
0.02Merna, Thursday, 22 October
Light rain. High 52°, low 36°.
0.13Merna, Friday, 23 October
Rain. High 51°, low 35°.
0Merna, Saturday, 24 October
Partly cloudy. High 45°, low 31°.
0
Merna, Sunday, 25 October
Clear. High 52°, low 29°.
0Merna, Monday, 26 October
Clear. High 46°, low 29°.
0Merna, Tuesday, 27 October
Clear. High 48°, low 25°.
0Merna, Wednesday, 28 October
Clear. High 51°, low 30°.
0
Merna, Thursday, 29 October
Overcast. High 51°, low 32°.
0.01Merna, Friday, 30 October
Light rain. High 47°, low 36°.
0.15
Merna, Saturday, 31 October
Snow. High 48°, low 37°.
0.02Merna, Sunday, 1 November
Light rain. High 49°, low 33°.
0.04Merna, Monday, 2 November
Snow. High 44°, low 34°.
0.01Merna, Tuesday, 3 November
Light rain. High 40°, low 30°.
0Merna, Wednesday, 4 November
Light snow. High 41°, low 28°.
0.04Merna, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Merna, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Merna, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07
Merna, Sunday, 8 November
Climate normal for this date — 60-year average.
0.05Merna, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Merna, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.04Merna, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06
Merna, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Merna, Friday, 13 November
Climate normal for this date — 60-year average.
0.06Merna, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Merna, Sunday, 15 November
Climate normal for this date — 60-year average.
0.03Merna, Monday, 16 November
Climate normal for this date — 60-year average.
0.06Merna, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Merna, Wednesday, 18 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 Merna, WY 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 Merna, WY 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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