Etna, WY Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Etna, WY.

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Current Conditions — Etna, WY

ALPINE (K46U)

Cloudy

NULL F
Humidity:%
Wind Speed: mph
Barometer: in
Dewpoint: F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 23 2026, 04:15 PM MDT
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5-Day Forecast — Etna, WY

Thursday

High 42 °F
Rain/Snow Mix
Thursday
Night
Low 30 °F
Snow
Friday

High 39 °F
Snow Likely
Friday
Night
Low 17 °F
Slight Chance of Snow
Saturday

High 51 °F
Chance of Snow
Saturday
Night
Low 28 °F
Rain/Snow Mix Likely
Sunday

High 50 °F
Chance of Rain/Snow Mix
Sunday
Night
Low 26 °F
Forecast Missing
Monday

High 50 °F
Forecast Missing

Detailed Forecast — Etna, WY

Thursday
Rain/Snow Mix. High near 42°F. Wind 12 to 15 mph, with gusts as high as 26 mph.
Thursday Night
Snow. Low around 30°F. Wind 2 to 9 mph, with gusts as high as 24 mph.
Friday
Snow Likely. High near 39°F. Wind 3 to 12 mph, with gusts as high as 20 mph.
Friday Night
Slight Chance of Snow. Low around 17°F. Wind 2 to 3 mph, with gusts as high as 10 mph.
Saturday
Chance of Snow. High near 51°F. Wind 2 to 6 mph, with gusts as high as 15 mph.
Saturday Night
Rain/Snow Mix Likely. Low around 28°F. Wind around 2 mph, with gusts as high as 7 mph.
Sunday
Chance of Rain/Snow Mix. High near 50°F. Wind 3 to 5 mph, with gusts as high as 12 mph.
Sunday Night
Forecast Missing. Low around 26°F. Wind 2 to 3 mph, with gusts as high as 10 mph.
Monday
Forecast Missing. High near 50°F. Wind 5 to 8 mph, with gusts as high as 17 mph.
Monday Night
Forecast Missing. Low around 26°F. Wind around 2 mph, with gusts as high as 9 mph.
Tuesday
Forecast Missing. High near 55°F. Wind 3 to 8 mph, with gusts as high as 15 mph.
Tuesday Night
Forecast Missing. Low around 28°F. Wind 1 to 2 mph, with gusts as high as 7 mph.
Wednesday
Forecast Missing. High near 59°F. Wind 3 to 5 mph, with gusts as high as 12 mph.
WY Radar
Current Radar • WY
Day 1 Outlook • April 23, 2026

Observation History — Etna, WY

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
04:15 PM MDT 10.00 Cloudy -- NULL % NA NA M
03:35 PM MDT 0.0 10.00 Cloudy -- 39.2 30.2 70% NA NA 29.93 1013.5
03:15 PM MDT 0.0 10.00 Cloudy -- 39.2 30.2 70% NA NA 29.93 1013.5
02:55 PM MDT 6.9 10.00 Cloudy -- 39.2 32.0 75% 34.2 NA 29.94 1013.9
02:35 PM MDT W 6.9 G 15.0 9.00 Mostly Cloudy -- 39.2 32.0 75% 34.2 NA 29.95 1014.2
02:15 PM MDT 8.1 10.00 Cloudy -- 39.2 32.0 75% 33.6 NA 29.95 1014.2
01:55 PM MDT 0.0 10.00 Cloudy -- 39.2 33.8 81% NA NA 29.95 1014.2
01:35 PM MDT 6.9 G 13.8 10.00 Cloudy -- 39.2 32.0 75% 34.2 NA 29.95 1014.2
01:15 PM MDT 8.1 G 13.8 10.00 Cloudy -- 39.2 32.0 75% 33.6 NA 29.95 1014.2
12:55 PM MDT W 10.4 10.00 Mostly Cloudy -- 39.2 32.0 75% 32.5 NA 29.95 1014.2
12:35 PM MDT G 17.3 10.00 Mostly Cloudy -- NULL % NA NA M
12:15 PM MDT W 11.5 10.00 NULL -- 39.2 32.0 75% 32.0 NA 29.96 1014.6
11:55 AM MDT W 13.8 G 20.7 10.00 Partly Cloudy -- 39.2 33.8 81% 31.3 NA 29.96 1014.6
11:35 AM MDT W 11.5 8.00 Partly Cloudy -- 37.4 33.8 87% 29.8 NA 29.96 1014.6
11:15 AM MDT 9.2 10.00 Cloudy -- 37.4 33.8 87% 30.7 NA 29.96 1014.6
10:55 AM MDT 0.0 10.00 Cloudy -- 37.4 33.8 87% NA NA 29.96 1014.6
10:35 AM MDT 4.6 G 12.7 10.00 Cloudy -- 37.4 33.8 87% 33.8 NA 29.95 1014.2
10:10 AM MDT G 11.5 10.00 Cloudy -- NULL % NA NA M
09:50 AM MDT 0.0 10.00 Cloudy -- 35.6 33.8 93% NA NA 29.94 1013.9
09:25 AM MDT NW 8.1 10.00 Cloudy -- 35.6 32.0 87% 29.1 NA 29.93 1013.5
09:15 AM MDT NW 6.9 8.00 Cloudy -- 35.6 32.0 87% 29.8 NA 29.93 1013.5
08:55 AM MDT 8.1 8.00 Cloudy -- 35.6 32.0 87% 29.1 NA 29.93 1013.5
08:35 AM MDT 8.1 10.00 Cloudy -- 35.6 32.0 87% 29.1 NA 29.92 1013.2
08:15 AM MDT 9.2 10.00 Cloudy -- 35.6 32.0 87% 28.6 NA 29.92 1013.2

Regional Weather Observation

ALPINE (K46U)

Cloudy
NULL F

DRIGGS REED MEM (KDIJ)

Cloudy and Breezy
44.6 F

JACKSON (KJAC)

Cloudy
37.4 F

REXBURG (KRXE)

Cloudy and Windy
50.0 F

IDAHO FALLS (KIDA)

Cloudy and Breezy
51.8 F

AFTON (KAFO)

Cloudy
NULL F
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