Weather in Merna, WY
Merna, Monday, 12 October, 22:55
Light rain. Feels like 32°. High 41°, low 34°.
Monthly outlook for Merna, WY: average high 42.5°, average low 27.2°. That is 3° below the climate normal for October. Precipitation is expected on 5 days (about 2.8 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 19 October (56.4°), the coolest 24 October (15.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 46.3° | 49.4° | -1.7° |
| 22 October – 31 October | 36.4° | 44° | -4.2° |
| 1 November – 10 November | at normal | 38.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Halfway (10 mi).
0.89
Merna, Tuesday, 13 October
Snow. High 38°, low 32°.
0
Merna, Wednesday, 14 October
Clear. High 45°, low 29°.
0Merna, Thursday, 15 October
Clear. High 47°, low 27°.
0Merna, Friday, 16 October
Clear. High 51°, low 27°.
0Merna, Saturday, 17 October
Clear. High 55°, low 33°.
0
Merna, Sunday, 18 October
Partly cloudy. High 54°, low 30°.
0Merna, Monday, 19 October
Clear. High 56°, low 35°.
0.77Merna, Tuesday, 20 October
Snow. High 41°, low 33°.
0.67Merna, Wednesday, 21 October
Snow. High 35°, low 27°.
0.01Merna, Thursday, 22 October
Light snow. High 30°, low 20°.
0.08Merna, Friday, 23 October
Light snow. High 32°, low 18°.
0
Merna, Saturday, 24 October
Overcast. High 32°, low 16°.
0Merna, Sunday, 25 October
Overcast. High 35°, low 18°.
0Merna, Monday, 26 October
Clear. High 41°, low 23°.
0Merna, Tuesday, 27 October
Clear. High 48°, low 30°.
0.06Merna, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.04Merna, Thursday, 29 October
Climate normal for this date — 60-year average.
0.06Merna, Friday, 30 October
Climate normal for this date — 60-year average.
0.04Merna, Saturday, 31 October
Climate normal for this date — 60-year average.
0.04Merna, Sunday, 1 November
Climate normal for this date — 60-year average.
0.06Merna, Monday, 2 November
Climate normal for this date — 60-year average.
0.03
Merna, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03Merna, Wednesday, 4 November
Climate normal for this date — 60-year average.
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.
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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