As of 22:04 MDT

Weather in Merna, WY

36°Current weather

Merna, Friday, 16 October, 22:04

Clear. Feels like 36°. High 54°, low 24°.

Pressure30.53 inHg
Wind1.1 mph SW
Humidity76%
Visibility6.2 mi
Dew point29°

Monthly outlook for Merna, WY: average high 45.5°, average low 29.8°. That is 0.2° below the climate normal for October. Precipitation is expected on 7 days (about 2.0 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 17 October (57.7°), the coolest 31 October (18.9°).

45.5°/29.8°
Average high / low
−0.2°
Below normal
7 / 4
Wet days / normal
2.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October49.4°47.9°+0.8°
26 October – 4 November39°41.4°-1.3°
5 November – 14 Novemberat normal36.7°—

October records over 66 years

73.2°1 October 2010All-time high
-13.5°30 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Halfway (10 mi).

Sat, 1758° / 27°0Clear
58 °Clear

Merna, Saturday, 17 October

Clear. High 58°, low 27°.

Pressure30.30 inHg
Wind1 mph E
Humidity39%
Visibility6.2 mi
Dew point24°
Sun, 1857° / 30°0Mostly clear
57 °Mostly clear

Merna, Sunday, 18 October

Mostly clear. High 57°, low 30°.

Pressure30.09 inHg
Wind1.1 mph E
Humidity40%
Visibility6.2 mi
Dew point20°
Mon, 1954° / 34°0Clear
54 °Clear

Merna, Monday, 19 October

Clear. High 54°, low 34°.

Pressure30.06 inHg
Wind4.5 mph SE
Humidity45%
Visibility6.2 mi
Dew point26°
Tue, 2052° / 37°0.02Light rain
52 °Light rain

Merna, Tuesday, 20 October

Light rain. High 52°, low 37°.

Pressure30.03 inHg
Wind3.5 mph E
Humidity46%
Visibility6.2 mi
Dew point31°
Wed, 2149° / 37°0.2Light rain
49 °Light rain

Merna, Wednesday, 21 October

Light rain. High 49°, low 37°.

Pressure30.15 inHg
Wind7.8 mph S
Humidity62%
Visibility—
Dew point35°
Thu, 2255° / 36°0.22Rain
55 °Rain

Merna, Thursday, 22 October

Rain. High 55°, low 36°.

Pressure30.06 inHg
Wind11.4 mph S
Humidity65%
Visibility—
Dew point37°
Fri, 2339° / 33°0.6Snow
39 °Snow

Merna, Friday, 23 October

Snow. High 39°, low 33°.

Pressure29.83 inHg
Wind14.9 mph W
Humidity90%
Visibility—
Dew point35°
Sat, 2439° / 33°0.07Snow
39 °Snow

Merna, Saturday, 24 October

Snow. High 39°, low 33°.

Pressure30.15 inHg
Wind8.7 mph S
Humidity85%
Visibility—
Dew point32°
Sun, 2537° / 28°0.07Light snow
37 °Light snow

Merna, Sunday, 25 October

Light snow. High 37°, low 28°.

Pressure30.03 inHg
Wind5.7 mph W
Humidity73%
Visibility—
Dew point28°
Mon, 2641° / 29°0Overcast
41 °Overcast

Merna, Monday, 26 October

Overcast. High 41°, low 29°.

Pressure30.18 inHg
Wind8.5 mph W
Humidity61%
Visibility—
Dew point25°
Tue, 2746° / 26°0Clear
46 °Clear

Merna, Tuesday, 27 October

Clear. High 46°, low 26°.

Pressure30.15 inHg
Wind4 mph NW
Humidity50%
Visibility—
Dew point22°
Wed, 2846° / 29°0.07Snow
46 °Snow

Merna, Wednesday, 28 October

Snow. High 46°, low 29°.

Pressure29.80 inHg
Wind8.7 mph SE
Humidity39%
Visibility—
Dew point20°
Thu, 2934° / 31°0.74Snow
34 °Snow

Merna, Thursday, 29 October

Snow. High 34°, low 31°.

Pressure29.71 inHg
Wind6 mph W
Humidity100%
Visibility—
Dew point33°
Fri, 3034° / 25°0Overcast
34 °Overcast

Merna, Friday, 30 October

Overcast. High 34°, low 25°.

Pressure30.18 inHg
Wind7 mph NW
Humidity92%
Visibility—
Dew point29°
Sat, 3135° / 19°0Clear
35 °Clear

Merna, Saturday, 31 October

Clear. High 35°, low 19°.

Pressure30.36 inHg
Wind5.3 mph W
Humidity88%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0140° / 20°0.04Climate normal
40 °Climate normal

Merna, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high40°
Average low20°
Average precipitation0.04 in
Chance of precipitation25%
Record high57° (1988)
Record low-13° (2002)
Mon, 0239° / 19°0.06Climate normal
39 °Climate normal

Merna, Monday, 2 November

Climate normal for this date — 60-year average.

Average high39°
Average low19°
Average precipitation0.06 in
Chance of precipitation25%
Record high56° (1962)
Record low-15° (1973)
Tue, 0340° / 18°0.03Climate normal
40 °Climate normal

Merna, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high40°
Average low18°
Average precipitation0.03 in
Chance of precipitation15%
Record high58° (1962)
Record low-14° (1967)
Wed, 0440° / 18°0.03Climate normal
40 °Climate normal

Merna, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high40°
Average low18°
Average precipitation0.03 in
Chance of precipitation17%
Record high55° (2020)
Record low-11° (2002)
Thu, 0539° / 19°0.04Climate normal
39 °Climate normal

Merna, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high39°
Average low19°
Average precipitation0.04 in
Chance of precipitation22%
Record high55° (1980)
Record low-14° (1961)
Fri, 0639° / 19°0.04Climate normal
39 °Climate normal

Merna, Friday, 6 November

Climate normal for this date — 60-year average.

Average high39°
Average low19°
Average precipitation0.04 in
Chance of precipitation27%
Record high54° (1999)
Record low-14° (2003)
Sat, 0739° / 18°0.06Climate normal
39 °Climate normal

Merna, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high39°
Average low18°
Average precipitation0.06 in
Chance of precipitation30%
Record high54° (1999)
Record low-20° (2003)
Sun, 0837° / 18°0.07Climate normal
37 °Climate normal

Merna, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high37°
Average low18°
Average precipitation0.07 in
Chance of precipitation40%
Record high54° (1999)
Record low-3° (2003)
Mon, 0937° / 17°0.05Climate normal
37 °Climate normal

Merna, Monday, 9 November

Climate normal for this date — 60-year average.

Average high37°
Average low17°
Average precipitation0.05 in
Chance of precipitation32%
Record high56° (2016)
Record low-9° (1960)
Tue, 1036° / 15°0.04Climate normal
36 °Climate normal

Merna, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high36°
Average low15°
Average precipitation0.04 in
Chance of precipitation33%
Record high53° (2016)
Record low-12° (1985)
Wed, 1135° / 15°0.04Climate normal
35 °Climate normal

Merna, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high35°
Average low15°
Average precipitation0.04 in
Chance of precipitation30%
Record high52° (1999)
Record low-13° (2000)
Thu, 1236° / 15°0.06Climate normal
36 °Climate normal

Merna, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high36°
Average low15°
Average precipitation0.06 in
Chance of precipitation18%
Record high56° (1999)
Record low-14° (2000)
Fri, 1335° / 16°0.05Climate normal
35 °Climate normal

Merna, Friday, 13 November

Climate normal for this date — 60-year average.

Average high35°
Average low16°
Average precipitation0.05 in
Chance of precipitation32%
Record high56° (1999)
Record low-13° (2000)
Sat, 1435° / 14°0.06Climate normal
35 °Climate normal

Merna, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high35°
Average low14°
Average precipitation0.06 in
Chance of precipitation27%
Record high56° (1999)
Record low-14° (2000)

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.