Lyman, WY Weather Forecast & Alerts

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

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Current Conditions — Lyman, WY

FORT BRIDGER (KFBR)

Cloudy and Windy

39.4 F
Humidity:65%
Wind Speed:W 25.3 G 32.2 mph
Barometer:29.99 in
Dewpoint:28.8 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:28.6 F
Apr 23 2026, 10:35 AM MDT
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5-Day Forecast — Lyman, WY

Thursday

High 48 °F
Mostly Cloudy
Thursday
Night
Low 30 °F
Partly Cloudy
Friday

High 55 °F
Mostly Sunny
Friday
Night
Low 28 °F
Partly Cloudy
Saturday

High 59 °F
Chance of T-storms
Saturday
Night
Low 33 °F
Chance of Rain/Snow Mix
Sunday

High 48 °F
T-storms
Sunday
Night
Low 28 °F
Chance of Snow
Monday

High 51 °F
Chance of T-storms

Detailed Forecast — Lyman, WY

Thursday
Mostly Cloudy. High near 48°F. Wind 25 to 28 mph, with gusts as high as 37 mph.
Thursday Night
Partly Cloudy. Low around 30°F. Wind 12 to 25 mph, with gusts as high as 35 mph.
Friday
Mostly Sunny. High near 55°F. Wind 12 to 26 mph, with gusts as high as 37 mph.
Friday Night
Partly Cloudy. Low around 28°F. Wind 2 to 22 mph, with gusts as high as 32 mph.
Saturday
Chance of Thunderstorms. High near 59°F. Wind 2 to 12 mph, with gusts as high as 20 mph.
Saturday Night
Chance of Rain/Snow Mix. Low around 33°F. Wind around 3 mph, with gusts as high as 7 mph.
Sunday
Thunderstorms. High near 48°F. Wind 9 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Chance of Snow. Low around 28°F. Wind 3 to 5 mph, with gusts as high as 9 mph.
Monday
Chance of Thunderstorms. High near 51°F. Wind 13 to 16 mph, with gusts as high as 24 mph.
Monday Night
Mostly Cloudy. Low around 30°F. Wind 2 to 3 mph, with gusts as high as 7 mph.
Tuesday
Isolated T-storm. High near 57°F. Wind 7 to 10 mph, with gusts as high as 17 mph.
Tuesday Night
Slight Chance of Rain. Low around 32°F. Wind 1 to 2 mph, with gusts as high as 5 mph.
Wednesday
Chance of Thunderstorms. High near 59°F. Wind 6 to 7 mph, with gusts as high as 14 mph.
WY Radar
Current Radar • WY
Day 1 Outlook • April 23, 2026

Observation History — Lyman, 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)
10:35 AM MDT W 25.3 G 32.2 10.00 Cloudy and Windy -- 39.4 28.8 65% 28.6 NA 29.99 1015.6
09:55 AM MDT W 19.7 G 27.7 10.00 Cloudy and Windy -- 39.0 30.2 70% 29.3 NA 29.98 1015.2
09:35 AM MDT W 20.8 G 27.7 5.00 Haze -- 37.4 30.9 77% 26.8 NA 29.98 1015.2
09:15 AM MDT W 21.9 G 32.2 10.00 Cloudy and Windy -- 36.7 29.5 75% 25.7 NA 29.98 1015.2
08:55 AM MDT W 19.7 G 25.3 10.00 Cloudy and Windy -- 36.7 29.3 74% 26.2 NA 29.97 1014.9
08:35 AM MDT W 20.8 G 27.7 10.00 Cloudy and Windy -- 35.8 28.9 76% 24.8 NA 29.97 1014.9
08:15 AM MDT W 21.9 G 27.7 10.00 Cloudy and Windy -- 35.1 29.3 79% 23.5 NA 29.96 1014.6
07:55 AM MDT W 21.9 G 30.0 10.00 Cloudy and Windy -- 35.4 29.7 79% 23.9 NA 29.96 1014.6
07:35 AM MDT W 17.2 G 24.2 10.00 Mostly Cloudy -- 33.8 32.0 93% 23.2 NA 29.95 1014.2
07:15 AM MDT W 18.3 G 23.0 7.00 Light Snow -- 32.9 31.6 95% 21.6 NA 29.94 1013.9
06:55 AM MDT 20.8 G 30.0 10.00 Cloudy and Windy -- 33.1 29.1 85% 21.2 NA 29.94 1013.9
06:35 AM MDT 16.1 G 26.4 10.00 Cloudy -- 33.1 28.9 85% 22.6 NA 29.94 1013.6
06:15 AM MDT W 25.3 G 32.2 10.00 Cloudy and Windy -- 32.9 28.9 85% 19.8 NA 29.94 1013.6
05:55 AM MDT 23.0 G 30.0 10.00 Partly Cloudy and Windy -- 32.9 28.4 83% 20.3 NA 29.92 1013.2
05:35 AM MDT 24.2 G 31.1 10.00 Clear and Windy -- 32.9 28.0 82% 20.1 NA 29.91 1012.9
05:15 AM MDT 24.2 G 31.1 10.00 Clear and Windy -- 32.7 28.2 83% 19.9 NA 29.91 1012.9
04:55 AM MDT G 33.3 10.00 Partly Cloudy -- 32.7 27.9 82% NA NA 29.91 1012.9
04:35 AM MDT G 32.2 10.00 Mostly Cloudy -- 32.0 28.0 85% NA NA 29.91 1012.9
04:15 AM MDT 23.0 10.00 Windy -- 32.2 27.5 83% 19.4 NA 29.92 1013.2
03:55 AM MDT 19.7 G 28.9 10.00 Clear and Windy -- 32.0 27.1 82% 20.1 NA 29.90 1012.5
03:35 AM MDT 23.0 G 28.9 10.00 Partly Cloudy and Windy -- 32.4 27.1 81% 19.6 NA 29.92 1013.2
03:15 AM MDT 19.7 G 28.9 10.00 Clear and Windy -- 32.2 27.0 81% 20.3 NA 29.92 1013.2
02:55 AM MDT 20.8 G 28.9 10.00 Clear and Windy -- 32.4 27.0 80% 20.3 NA 29.92 1013.2
02:35 AM MDT 24.2 G 32.2 10.00 Clear and Windy -- 32.4 26.8 80% 19.4 NA 29.92 1013.2

Regional Weather Observation

FORT BRIDGER (KFBR)

Cloudy and Windy
39.4 F

SAGE / JUNCTION (KSGE)

NULL
37.4 F

KEMMERER (KEMM)

Cloudy and Windy
32.0 F

FIRST DIVIDE (KFIR)

Windy
32.0 F

EVANSTON (KEVW)

Cloudy and Windy
33.8 F

SHUTE CREEK (KSHC)

Windy
39.2 F
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