As of 07:09 MDT

Weather in Merna, WY

26°Current weather

Merna, Monday, 19 October, 07:09

Clear. Feels like 26°. High 61°, low 26°.

Pressure30.15 inHg
Wind0.2 mph SW
Humidity82%
Visibility6.2 mi
Dew point22°

Monthly outlook for Merna, WY: average high 48°, average low 30.5°. That is 2.2° above the climate normal for October. Precipitation is expected on 5 days (about 1.0 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 19 October (60.5°), the coolest 2 November (25.6°).

48°/30.5°
Average high / low
+2.2°
Above normal
5 / 4
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
19 October – 28 October51.5°46.4°+2.8°
29 October – 7 November42.1°39.7°+1.3°
8 November – 17 Novemberat normal35.3°—

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).

Tue, 2059° / 27°0.02Light rain
59 °Light rain

Merna, Tuesday, 20 October

Light rain. High 59°, low 27°.

Pressure30.09 inHg
Wind4.3 mph SE
Humidity43%
Visibility6.2 mi
Dew point31°
Wed, 2155° / 33°0.01Light rain
55 °Light rain

Merna, Wednesday, 21 October

Light rain. High 55°, low 33°.

Pressure30.15 inHg
Wind6.6 mph SE
Humidity59%
Visibility6.2 mi
Dew point37°
Thu, 2252° / 36°0.05Light rain
52 °Light rain

Merna, Thursday, 22 October

Light rain. High 52°, low 36°.

Pressure30.09 inHg
Wind7 mph SE
Humidity77%
Visibility6.2 mi
Dew point40°
Fri, 2342° / 32°0.77Snow
42 °Snow

Merna, Friday, 23 October

Snow. High 42°, low 32°.

Pressure29.80 inHg
Wind10 mph W
Humidity81%
Visibility—
Dew point34°
Sat, 2442° / 30°0.01Light snow
42 °Light snow

Merna, Saturday, 24 October

Light snow. High 42°, low 30°.

Pressure30.18 inHg
Wind6 mph NW
Humidity67%
Visibility—
Dew point29°
Sun, 2553° / 30°0Clear
53 °Clear

Merna, Sunday, 25 October

Clear. High 53°, low 30°.

Pressure30.30 inHg
Wind7.9 mph NW
Humidity22%
Visibility—
Dew point9°
Mon, 2653° / 33°0Mostly clear
53 °Mostly clear

Merna, Monday, 26 October

Mostly clear. High 53°, low 33°.

Pressure30.03 inHg
Wind12.5 mph NW
Humidity21%
Visibility—
Dew point10°
Tue, 2748° / 32°0Clear
48 °Clear

Merna, Tuesday, 27 October

Clear. High 48°, low 32°.

Pressure30.21 inHg
Wind7.9 mph SE
Humidity37%
Visibility—
Dew point19°
Wed, 2850° / 28°0Overcast
50 °Overcast

Merna, Wednesday, 28 October

Overcast. High 50°, low 28°.

Pressure30.15 inHg
Wind4.1 mph SE
Humidity30%
Visibility—
Dew point14°
Thu, 2949° / 32°0Mostly clear
49 °Mostly clear

Merna, Thursday, 29 October

Mostly clear. High 49°, low 32°.

Pressure29.97 inHg
Wind8.1 mph SE
Humidity41%
Visibility—
Dew point21°
Fri, 3041° / 33°0.08Snow
41 °Snow

Merna, Friday, 30 October

Snow. High 41°, low 33°.

Pressure29.88 inHg
Wind6 mph W
Humidity83%
Visibility—
Dew point35°
Sat, 3143° / 31°0.06Light rain
43 °Light rain

Merna, Saturday, 31 October

Light rain. High 43°, low 31°.

Pressure29.94 inHg
Wind12.1 mph W
Humidity59%
Visibility—
Dew point28°
Sun, 0139° / 31°0.05Light snow
39 °Light snow

Merna, Sunday, 1 November

Light snow. High 39°, low 31°.

Pressure29.80 inHg
Wind10.4 mph NW
Humidity80%
Visibility—
Dew point31°
Mon, 0237° / 26°0Clear
37 °Clear

Merna, Monday, 2 November

Clear. High 37°, low 26°.

Pressure30.12 inHg
Wind6.9 mph W
Humidity48%
Visibility—
Dew point15°
Tue, 0344° / 26°0Mostly clear
44 °Mostly clear

Merna, Tuesday, 3 November

Mostly clear. High 44°, low 26°.

Pressure30.15 inHg
Wind12 mph SE
Humidity62%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 1535° / 11°0.02Climate normal
35 °Climate normal

Merna, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high35°
Average low11°
Average precipitation0.02 in
Chance of precipitation13%
Record high55° (1999)
Record low-17° (1964)
Mon, 1635° / 13°0.03Climate normal
35 °Climate normal

Merna, Monday, 16 November

Climate normal for this date — 60-year average.

Average high35°
Average low13°
Average precipitation0.03 in
Chance of precipitation22%
Record high51° (1999)
Record low-15° (1980)
Tue, 1733° / 14°0.06Climate normal
33 °Climate normal

Merna, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high33°
Average low14°
Average precipitation0.06 in
Chance of precipitation28%
Record high51° (1999)
Record low-15° (1980)

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.