Casper, WY Weather Forecast & Alerts

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

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Current Conditions — Casper, WY

20 MILE HILL (KTMH)

NULL

NULL F
Humidity:%
Wind Speed: G 32.9 mph
Barometer: in
Dewpoint: F
Visibility:1.24 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 27 2026, 01:16 AM MDT
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5-Day Forecast — Casper, WY

Monday

High 46 °F
Snow Likely
Monday
Night
Low 33 °F
Rain/Snow Mix
Tuesday

High 51 °F
T-storms
Tuesday
Night
Low 30 °F
Partly Cloudy
Wednesday

High 57 °F
Chance of T-storms
Wednesday
Night
Low 32 °F
Slight Chance of Rain
Thursday

High 57 °F
Chance of T-storms
Thursday
Night
Low 32 °F
Mostly Clear
Friday

High 66 °F
Mostly Sunny

Detailed Forecast — Casper, WY

Monday
Snow Likely. High near 46°F. Wind 3 to 7 mph, with gusts as high as 10 mph.
Monday Night
Rain/Snow Mix. Low around 33°F. Wind 3 to 7 mph, with gusts as high as 10 mph.
Tuesday
Thunderstorms. High near 51°F. Wind 6 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Partly Cloudy. Low around 30°F. Wind 2 to 3 mph, with gusts as high as 8 mph.
Wednesday
Chance of Thunderstorms. High near 57°F. Wind 6 to 7 mph, with gusts as high as 15 mph.
Wednesday Night
Slight Chance of Rain. Low around 32°F. Wind 3 to 5 mph, with gusts as high as 9 mph.
Thursday
Chance of Thunderstorms. High near 57°F. Wind 7 to 9 mph, with gusts as high as 16 mph.
Thursday Night
Mostly Clear. Low around 32°F. Wind around 5 mph, with gusts as high as 9 mph.
Friday
Mostly Sunny. High near 66°F. Wind around 7 mph, with gusts as high as 15 mph.
Friday Night
Mostly Clear. Low around 37°F. Wind 6 to 7 mph, with gusts as high as 12 mph.
Saturday
Partly Sunny. High near 71°F. Wind 7 to 9 mph, with gusts as high as 17 mph.
Saturday Night
Mostly Cloudy. Low around 41°F. Wind around 7 mph, with gusts as high as 13 mph.
Sunday
Isolated T-storm. High near 73°F. Wind around 12 mph, with gusts as high as 20 mph.
WY Radar
Current Radar • WY
Day 1 Outlook • April 27, 2026

Observation History — Casper, 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)
01:16 AM MDT G 32.9 1.24 NULL -- NULL % NA NA M
01:06 AM MDT G 32.9 1.24 NULL -- NULL % NA NA M
12:46 AM MDT 26.7 G 31.7 1.24 Breezy -- 24.8 24.3 98% 8.6 NA M
12:36 AM MDT 28.6 G 33.6 1.24 Breezy -- 24.8 24.3 98% 8.2 NA M
12:32 AM MDT 25.5 G 34.8 1.24 Breezy -- 26.6 26.1 98% 11.3 NA M
12:26 AM MDT 27.3 G 34.8 1.24 Breezy -- 26.6 26.1 98% 10.9 NA M
12:22 AM MDT 28.0 G 33.6 1.24 Breezy -- 26.6 26.1 98% 10.8 NA M
12:12 AM MDT 23.6 G 33.6 1.24 Windy -- 26.6 26.1 98% 11.8 NA M
12:06 AM MDT 27.3 G 32.9 1.24 Breezy -- 26.6 26.4 99% 10.9 NA M
12:02 AM MDT 26.1 G 32.9 1.24 Breezy -- 26.6 26.4 99% 11.1 NA M
11:46 PM MDT 26.1 G 31.7 1.24 Breezy -- 26.6 26.4 99% 11.1 NA M
11:36 PM MDT 24.9 G 31.7 1.24 Windy -- 26.6 26.4 99% 11.5 NA M
11:32 PM MDT 23.0 G 35.4 1.24 Windy -- 26.6 26.4 99% 12.0 NA M
11:26 PM MDT 24.9 G 36.7 1.24 Windy -- 26.6 26.4 99% 11.5 NA M
11:22 PM MDT G 36.7 1.24 NULL -- 26.6 26.4 99% NA NA M
11:16 PM MDT 23.6 G 33.6 1.24 Windy -- 26.6 26.4 99% 11.8 NA M
11:12 PM MDT 26.1 G 33.6 1.24 Breezy -- 26.6 26.4 99% 11.1 NA M
11:02 PM MDT G 38.5 1.24 NULL -- NULL % NA NA M
10:46 PM MDT G 36.7 1.24 NULL -- 28.4 28.2 99% NA NA M
10:36 PM MDT G 38.5 1.24 NULL -- 28.4 28.2 99% NA NA M
10:26 PM MDT G 37.3 1.24 NULL -- 28.4 28.4 100% NA NA M
10:16 PM MDT G 36.0 1.24 NULL -- 28.4 28.4 100% NA NA M
10:12 PM MDT G 35.4 1.24 NULL -- 28.4 28.4 100% NA NA M
10:06 PM MDT G 35.4 1.24 NULL -- NULL % NA NA M

Regional Weather Observation

20 MILE HILL (KTMH)

NULL
NULL F

CASPER (KCPR)

Light Snow and Fog/Mist
28.4 F

PATHFINDER HILL (KPAT)

NULL
24.8 F

DEER CREEK (KDRC)

NULL
30.2 F

(KIDV)


F

DOUGLAS (KDGW)

Light Snow and Fog/Mist
30.2 F
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