GREYBULL, WY 82426 Weather Forecast & Current Conditions

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82426 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
SOUTH BIG HORN, WY Current Weather
10:53 AM MDT MAY 20, 2026
Clear 59°F
Feels Like:	59°F
Dewpoint:	27°F
Rel. Hum.:	29%
Visibility:	10 miles
Wind:	S at 5 mph
Pressure:	30.04 inches
Last 72 hours
Local Area Snow Depth
Wyoming Current Weather
Wyoming MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

82426 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	GREYBULL, WY 82426 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Partly cloudy. A slight chance of. Highs in the mid 60s. Southwest winds around 10 mph this afternoon.

TONIGHT
Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then showers after midnight. Breezy with lows around 40. Northwest winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 80 percent.

THURSDAY
Rain showers with a slight chance of snow showers in the morning, then rain showers with a slight chance of thunderstorms in the afternoon. No snow accumulation. Windy with highs around 50. Northwest winds 20 to 30 mph with gusts up to 50 mph. Chance of precipitation 80 percent.

THURSDAY NIGHT
Partly cloudy and breezy. Lows in the mid 30s. Northwest winds 15 to 20 mph with gusts up to 35 mph, diminishing to around 10 mph after midnight.

FRIDAY
Mostly sunny. Highs in the mid 60s. North winds around 10 mph in the afternoon.

FRIDAY NIGHT
Mostly clear. Lows around 40.

SATURDAY
Mostly sunny. Highs in the mid 70s.

SATURDAY NIGHT
Mostly clear. Lows in the mid 40s.

SUNDAY
Mostly sunny. Highs around 80.

SUNDAY NIGHT
Partly cloudy in the evening, then clearing. Lows around 50.

MEMORIAL DAY
Mostly sunny. Highs in the mid 80s.

MONDAY NIGHT
Partly cloudy in the evening, then clearing. Lows in the lower 50s.

TUESDAY
Mostly sunny in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Breezy with highs in the lower 80s. Chance of rain 20 percent.

82426 WEATHER SATELLITE LOOPS

Visible Weather Satellite
GREYBULL, WY 82426

Infrared Weather Satellite
GREYBULL, WY 82426

82426 WEATHER RADAR LOOP

NEXRAD Weather Radar
GREYBULL, WY 82426

MOS COMPUTER WEATHER FORECAST

SOUTH BIG HORN, WY 3 hourly weather forecast

weather forecast created 8:00 AM EDT 5/20/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
20 MAY 2026

12 PM

63°

64°

Partly Cloudy

5%

0% Thunder
( 9% severe)

S 3

20%

22°

High 69°

3 PM

68°

68°

Mostly Cloudy

SW 5

15%

20°

Mostly Cloudy

6 PM

68°

68°

Mostly Cloudy

8%

0% Thunder
( 7% severe)

WNW 9

16%

21°

9 PM

60°

57°

Mostly Cloudy

NNW 15

32%

30°

Thursday
21 MAY 2026

12 AM

53°

49°

Mostly Cloudy

34%
RAIN
.25–.5 in

0% Thunder
( 6% severe)

NW 12

52%

36°

Low 39°

3 AM

47°

41°

Mostly Cloudy

NW 14

71%

38°

High 55°

6 AM

43°

37°

Mostly Cloudy

66%
RAIN
***

0% Thunder
( 6% severe)

NW 12

86%

39°

Mostly Cloudy

Rain Likely

9 AM

45°

39°

Mostly Cloudy

NW 12

82%

40°

12 PM

48°

42°

Mostly Cloudy

54%
RAIN
.25–.5 in

0% Thunder
( 9% severe)

NNW 16

68%

38°

3 PM

51°

46°

Mostly Cloudy

NNW 16

56%

36°

6 PM

52°

47°

Mostly Cloudy

14%
RAIN
.01–.1 in

0% Thunder
( 2% severe)

NNW 17

50%

34°

9 PM

49°

44°

Mostly Cloudy

NNW 12

58%

35°

Friday
22 MAY 2026

12 AM

45°

43°

Mostly Cloudy

2%

0% Thunder
( 1% severe)

NNW 5

71%

36°

Low 35°

3 AM

41°

39°

Partly Cloudy

N 2

82%

36°

High 67°

6 AM

37°

35°

Partly Cloudy

0%

0% Thunder
( 0% severe)

CALM

92%

35°

Partly Cloudy

9 AM

47°

46°

Partly Cloudy

S 2

68%

37°

12 PM

58°

59°

Partly Cloudy

0%

0% Thunder
( 5% severe)

NW 1

40%

34°

3 PM

64°

65°

Partly Cloudy

NW 3

27%

29°

6 PM

66°

66°

Partly Cloudy

N 5

22%

26°


SOUTH BIG HORN, WY extended weather forecast
Saturday 23 MAY 2026	Sunday 24 MAY 2026	Monday 25 MAY 2026	Tuesday 26 MAY 2026	Wednesday 27 MAY 2026
Low 43°	Low 49°	Low 53°	Low 52°	Low 53°
High 80°	High 87°	High 88°	High 86°	High 81°

Mostly Cloudy 6% Rain	Partly Cloudy 16% Rain	Partly Cloudy 18% Rain	Partly Cloudy 13% Rain	Overcast 39% Rain

WEATHER SELECT BOX EXAMPLES:

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