As of 11:55 MDT

Weather in Merna, WY

52°Current weather

Merna, Thursday, 22 October, 11:55

Overcast. Feels like 50°. High 55°, low 35°.

Pressure30.06 inHg
Wind6.8 mph SE
Humidity69%
Visibility6.2 mi
Dew point42°

Monthly outlook for Merna, WY: average high 46.7°, average low 30.9°. That is 2.5° above the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 22 October (55°), the coolest 1 November (25.3°).

46.7°/30.9°
Average high / low
+2.5°
Above normal
4 / 4
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
22 October – 31 October44.3°44°+0.2°
1 November – 10 November50.8°38.5°+6.8°
11 November – 20 Novemberat normal34°—

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).

Fri, 2347° / 38°0.35Snow
47 °Snow

Merna, Friday, 23 October

Snow. High 47°, low 38°.

Pressure29.80 inHg
Wind7.6 mph S
Humidity56%
Visibility6.2 mi
Dew point26°
Sat, 2442° / 28°0Light rain
42 °Light rain

Merna, Saturday, 24 October

Light rain. High 42°, low 28°.

Pressure30.24 inHg
Wind6.7 mph SE
Humidity79%
Visibility6.2 mi
Dew point31°
Sun, 2541° / 30°0.05Snow
41 °Snow

Merna, Sunday, 25 October

Snow. High 41°, low 30°.

Pressure30.15 inHg
Wind2.4 mph E
Humidity75%
Visibility6.2 mi
Dew point30°
Mon, 2644° / 30°0Partly cloudy
44 °Partly cloudy

Merna, Monday, 26 October

Partly cloudy. High 44°, low 30°.

Pressure30.21 inHg
Wind7 mph SE
Humidity67%
Visibility—
Dew point30°
Tue, 2734° / 26°0.4Snow
34 °Snow

Merna, Tuesday, 27 October

Snow. High 34°, low 26°.

Pressure29.97 inHg
Wind9.4 mph W
Humidity87%
Visibility—
Dew point30°
Wed, 2844° / 28°0Clear
44 °Clear

Merna, Wednesday, 28 October

Clear. High 44°, low 28°.

Pressure30.06 inHg
Wind8.8 mph NW
Humidity25%
Visibility—
Dew point8°
Thu, 2946° / 28°0Overcast
46 °Overcast

Merna, Thursday, 29 October

Overcast. High 46°, low 28°.

Pressure30.09 inHg
Wind9 mph SE
Humidity42%
Visibility—
Dew point18°
Fri, 3048° / 34°0Overcast
48 °Overcast

Merna, Friday, 30 October

Overcast. High 48°, low 34°.

Pressure29.83 inHg
Wind17.9 mph W
Humidity43%
Visibility—
Dew point24°
Sat, 3141° / 30°0.04Snow
41 °Snow

Merna, Saturday, 31 October

Snow. High 41°, low 30°.

Pressure29.83 inHg
Wind15.9 mph W
Humidity50%
Visibility—
Dew point23°
Sun, 0145° / 25°0Clear
45 °Clear

Merna, Sunday, 1 November

Clear. High 45°, low 25°.

Pressure30.06 inHg
Wind7.2 mph NW
Humidity31%
Visibility—
Dew point10°
Mon, 0250° / 27°0Clear
50 °Clear

Merna, Monday, 2 November

Clear. High 50°, low 27°.

Pressure30.27 inHg
Wind6.9 mph NW
Humidity19%
Visibility—
Dew point3°
Tue, 0354° / 32°0Overcast
54 °Overcast

Merna, Tuesday, 3 November

Overcast. High 54°, low 32°.

Pressure30.24 inHg
Wind4.5 mph SE
Humidity21%
Visibility—
Dew point8°
Wed, 0452° / 35°0Clear
52 °Clear

Merna, Wednesday, 4 November

Clear. High 52°, low 35°.

Pressure30.03 inHg
Wind10.1 mph W
Humidity49%
Visibility—
Dew point30°
Thu, 0551° / 35°0Partly cloudy
51 °Partly cloudy

Merna, Thursday, 5 November

Partly cloudy. High 51°, low 35°.

Pressure30.03 inHg
Wind7.3 mph W
Humidity55%
Visibility—
Dew point31°
Fri, 0653° / 34°0Mostly clear
53 °Mostly clear

Merna, Friday, 6 November

Mostly clear. High 53°, low 34°.

Pressure29.97 inHg
Wind7.5 mph SE
Humidity55%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Thu, 1932° / 12°0.03Climate normal
32 °Climate normal

Merna, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high32°
Average low12°
Average precipitation0.03 in
Chance of precipitation22%
Record high49° (2007)
Record low-11° (1994)
Fri, 2032° / 11°0.04Climate normal
32 °Climate normal

Merna, Friday, 20 November

Climate normal for this date — 60-year average.

Average high32°
Average low11°
Average precipitation0.04 in
Chance of precipitation28%
Record high51° (1989)
Record low-19° (2011)

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.