As of 20:12 MDT

Weather in Merna, WY

46°Current weather

Merna, Tuesday, 20 October, 20:12

Clear. Feels like 46°. High 58°, low 36°.

Pressure30.15 inHg
Wind0.8 mph W
Humidity72%
Visibility6.2 mi
Dew point38°

Monthly outlook for Merna, WY: average high 51.3°, average low 32.5°. That is 4.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 3 November (60°), the coolest 25 October (27.4°).

51.3°/32.5°
Average high / low
+4.4°
Above normal
2 / 4
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
20 October – 29 October50.4°45.6°+2.6°
30 October – 8 November52.9°39.3°+7.5°
9 November – 18 Novemberat normal34.8°—

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).

Wed, 2159° / 38°0.02Light rain
59 °Light rain

Merna, Wednesday, 21 October

Light rain. High 59°, low 38°.

Pressure30.15 inHg
Wind6 mph SE
Humidity56%
Visibility6.2 mi
Dew point36°
Thu, 2254° / 40°0.01Light rain
54 °Light rain

Merna, Thursday, 22 October

Light rain. High 54°, low 40°.

Pressure30.06 inHg
Wind7 mph SE
Humidity72%
Visibility6.2 mi
Dew point41°
Fri, 2349° / 33°0.7Snow
49 °Snow

Merna, Friday, 23 October

Snow. High 49°, low 33°.

Pressure29.83 inHg
Wind3.8 mph S
Humidity65%
Visibility6.2 mi
Dew point35°
Sat, 2441° / 31°0.04Snow
41 °Snow

Merna, Saturday, 24 October

Snow. High 41°, low 31°.

Pressure30.21 inHg
Wind7.6 mph S
Humidity75%
Visibility6.2 mi
Dew point31°
Sun, 2550° / 27°0Clear
50 °Clear

Merna, Sunday, 25 October

Clear. High 50°, low 27°.

Pressure30.15 inHg
Wind4.8 mph N
Humidity54%
Visibility—
Dew point27°
Mon, 2647° / 29°0Partly cloudy
47 °Partly cloudy

Merna, Monday, 26 October

Partly cloudy. High 47°, low 29°.

Pressure30.36 inHg
Wind6.1 mph W
Humidity64%
Visibility—
Dew point29°
Tue, 2750° / 30°0Clear
50 °Clear

Merna, Tuesday, 27 October

Clear. High 50°, low 30°.

Pressure30.18 inHg
Wind9.4 mph NW
Humidity36%
Visibility—
Dew point18°
Wed, 2846° / 30°0Overcast
46 °Overcast

Merna, Wednesday, 28 October

Overcast. High 46°, low 30°.

Pressure30.21 inHg
Wind9.8 mph SE
Humidity41%
Visibility—
Dew point19°
Thu, 2950° / 30°0Partly cloudy
50 °Partly cloudy

Merna, Thursday, 29 October

Partly cloudy. High 50°, low 30°.

Pressure30.03 inHg
Wind5.7 mph W
Humidity31%
Visibility—
Dew point15°
Fri, 3049° / 30°0Overcast
49 °Overcast

Merna, Friday, 30 October

Overcast. High 49°, low 30°.

Pressure29.77 inHg
Wind19.2 mph W
Humidity26%
Visibility—
Dew point13°
Sat, 3143° / 28°0Partly cloudy
43 °Partly cloudy

Merna, Saturday, 31 October

Partly cloudy. High 43°, low 28°.

Pressure29.71 inHg
Wind18 mph W
Humidity29%
Visibility—
Dew point10°
Sun, 0151° / 28°0Partly cloudy
51 °Partly cloudy

Merna, Sunday, 1 November

Partly cloudy. High 51°, low 28°.

Pressure29.97 inHg
Wind9.6 mph NW
Humidity25%
Visibility—
Dew point10°
Mon, 0255° / 33°0Overcast
55 °Overcast

Merna, Monday, 2 November

Overcast. High 55°, low 33°.

Pressure30.24 inHg
Wind4.6 mph NW
Humidity36%
Visibility—
Dew point21°
Tue, 0360° / 38°0Mostly clear
60 °Mostly clear

Merna, Tuesday, 3 November

Mostly clear. High 60°, low 38°.

Pressure30.30 inHg
Wind4.5 mph W
Humidity30%
Visibility—
Dew point21°
Wed, 0459° / 40°0Mostly clear
59 °Mostly clear

Merna, Wednesday, 4 November

Mostly clear. High 59°, low 40°.

Pressure30.18 inHg
Wind9.2 mph W
Humidity38%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Wed, 1833° / 13°0.06Climate normal
33 °Climate normal

Merna, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high33°
Average low13°
Average precipitation0.06 in
Chance of precipitation28%
Record high51° (2008)
Record low-9° (1984)

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.