Weather World

Shell Lake, WY Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Current Conditions

Settings

Clear

54°F

Updated	9:48 am
Feels Like	57°F
Humidity	54%
Wind	WNW 10 mph
Barometer	30.15 in
Dew Point	38°F

Clear

12°C

Updated	9:48 am
Feels Like	14°C
Humidity	54%
Wind	WNW 16 km/h
Barometer	102.1 kPa
Dew Point	3°C

WX Settings

°F °C°F °C

Text IconsText Icons

Sun & Moon

Converter

Cloud Cover	100%
uv UV Index	6
Sunrise	6:51 AM
Sunset	7:19 PM
Moonrise	1:11 PM
Moonset	9:40 PM

Civil Twilight
6:17 AM to 6:47 AM
7:18 PM to 7:47 PM
Shell Lake WY Weather - Waxing Crescent Moon

Waxing Crescent Moon

Shell Lake Weather Forecast

TODAY	TONIGHT	THURSDAY	THURSDAY NIGHT	FRIDAY	FRIDAY NIGHT	SATURDAY	SATURDAY NIGHT	SUNDAY	SUNDAY NIGHT	MONDAY	MONDAY NIGHT

Clearing	Partly Cloudy	Rain Showers	Partly Cloudy	Chance of T-Storm	Chance of T-Storm	Chance of T-Storm	Chance of T-Storm	Chance of T-Storm	Mostly Clear	Mostly Sunny	Mostly Clear
Hi: 69°FHi: 21°C	Lo: 49°FLo: 9°C	Hi: 65°FHi: 18°C	Lo: 50°FLo: 10°C	Hi: 69°FHi: 21°C	Lo: 45°FLo: 7°C	Hi: 59°FHi: 15°C	Lo: 41°FLo: 5°C	Hi: 59°FHi: 15°C	Lo: 41°FLo: 5°C	Hi: 65°FHi: 18°C	Lo: 45°FLo: 7°C
		POP: 60%		POP: 60%	POP: 90%	POP: 80%	POP: 70%	POP: 60%

POP = Probability of Precipitation.

Weather Outlook Updated: 632 AM MDT Wed Sep 16 2026 Shell Lake, WY Weather - WeatherWorld.com

Trending Headlines

Shell Lake Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Shell Lake Weather Map

Comprehensive Weather Maps

Shell Lake Quick Facts

National Two Day Weather Forecast

E-mail the Shell Lake Weather Forecast

Voice your opinion or tell us about page issues...

Shell Lake Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 419 AM MDT Wed Sep 16 2026

Key Messages

A warmer day for most today. Increasing moisture will bring isolated to scattered thunderstorms, mainly in southern and western Wyoming.
Deeper monsoonal moisture spreads over the area Thursday through Saturday, with a greater chance of showers and storms. At this point, Friday looks like the day for the most widespread showers and storms.
Temperatures remain near to above normal through Friday, with cooler temperatures for the weekend. Dry weather may return by Sunday.

Discussion

... ...

Sponsored Links

Weather 101: Term of the Day

Serial Derecho

Type of derecho that consists of an extensive squall line which is oriented such that the angle between the mean wind direction and the squall line axis is small. A series of LEWPs and bow echoes move along the line. The downburst activity is associated with the LEWPs and bows. A Serial Derecho tends to be more frequent toward the north end of the line during the late winter and spring months. It occurs less frequently than its cousin the "progressive derecho." It is associated with a linear type mesoscale convective system that moves along and in advance of a cold front or dry line. These boundaries are often associated with a strong, migratory surface low pressure system and strong short wave trough at 500 mb (strong dynamic forcing). Lifted Indices are typically -6 or lower and the advection of dry air in the mid-troposphere (3-7 km above ground) by relatively strong winds leads to high convective instability and increased downdraft potential. The bow echoes move along the line in the direction of the mean flow, often southwest to northeast. These storms move at speeds exceeding 35 knots. Squall line movement is often less than 30 knots.