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Symms, ID Weather Forecast

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Hazy

59°F

Updated	1:09 pm
Feels Like	73°F
Humidity	41%
Wind	N 0 mph
Barometer	30.16 in
Dew Point	35°F

Hazy

15°C

Updated	1:09 pm
Feels Like	23°C
Humidity	41%
Wind	N 0 km/h
Barometer	102.1 kPa
Dew Point	2°C

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Cloud Cover	0%
uv UV Index	5
Sunrise	7:53 AM
Sunset	7:18 PM
Moonrise	4:31 AM
Moonset	5:55 PM

Civil Twilight
7:20 AM to 7:49 AM
7:17 PM to 7:46 PM
Symms ID Weather - Waning Crescent Moon

Waning Crescent Moon

Symms Weather Forecast

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

Smoke	Clear	Sunny	Clear	Sunny	Partly Cloudy	Partly Sunny	Chance of Showers	Chance of Showers	Chance of Showers	Mostly Sunny
Hi: 84°FHi: 29°C	Lo: 51°FLo: 11°C	Hi: 84°FHi: 29°C	Lo: 52°FLo: 11°C	Hi: 85°FHi: 29°C	Lo: 48°FLo: 9°C	Hi: 65°FHi: 18°C	Lo: 40°FLo: 4°C	Hi: 62°FHi: 17°C Lo: 38°FLo: 3°C	Hi: 62°FHi: 17°C Lo: 38°FLo: 3°C	Hi: 65°FHi: 18°C
							POP: 30%	POP: 20%	POP: 20%

POP = Probability of Precipitation.

Weather Outlook Updated: 230 AM MDT Wed Oct 07 2026 Symms, ID Weather - WeatherWorld.com

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Issued: 1125 AM MDT Wed Oct 7 2026

Key Messages

Continued very warm, dry days through Friday.
Much cooler, with showers, Saturday through Tuesday.
Significant rainfall possible in Idaho next week, but confidence is low.

Aviation

/18Z Wednesday through Thursday/... Issued 1120 AM MDT WED OCT 7 2026

VFR and clear, except areas of smoke/haze reducing visibility near prescribed burns. Surface winds: variable less than 12 kt. Winds aloft at 10kft MSL: W-NW 5-15 kt.

KBOI...VFR and clear. Surface winds: variable around 4 kt, becoming NW 4-8 ...

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Weather 101: Term of the Day

Rogue Wave

Commonly used term by mariners of a wave of an unexpected wave of much greater height or steepness than other waves in the prevailing sea or swell system. Rogue waves have been part of marine folklore for centuries. They are generally considered to be unexpectedly high waves which in some instances come from a direction different from the predominant waves in the local area. A single rogue wave has certainly been known to spell disaster for the mariner. They have, over the past twenty or thirty years, come to be recognized as unique phenomena albeit with several possible causes.,(1) Constructive interference. Several different wave trains of differing speeds and directions meet at the same time. The heights of the crests are additive so that an extreme wave may result when very high waves are included in the wave trains. The effect is normally short lived since the wave trains continue to separate and move on.,(2) Focusing of wave energy. When storm forced waves are developed in a water current counter to the wave direction an interaction can take place which results in a shortening of the wave frequency. The result is the superimposing of the wave trains and the generation of extreme waves. Examples of currents where these are sometimes seen are the Gulf Stream and Agulhas current. Extreme wave developed in this regime tend to be longer lived.,(3) Normal part of the wave spectrum. The generation of waves on water results not in a single wave height but in a spectrum of waves distributed from the smallest capillary waves to large waves indeed. Within this spectrum there is a finite possibility of each of the wave heights to occur with the largest waves being the least likely. The wave height most commonly observed and forecast is the significant wave height. This is defined as the average of the one third highest waves. The probability of encountering such a wave is about 1 in 10 while 1 in 1000 waves will be nearly double the significant wave height or higher. This is thought to be the source of at least some reports of rogue waves.