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Shaded-relief map of Mud Lake, Idaho: rivers, roads, the city limits and where the water drains.
IDAHO · JEFFERSON COUNTY

Mud Lake

359 people, 4,790 ft above sea level in Jefferson County.

4,790 ftElevation, city center
359People, 2024 estimate
0 sq miLand area
Sunny 44°
Sunny now Dew point 35° · SSW 18 mph · high 46°
City of Mud Lake River Interstate 2 miles
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The Mud Lake plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Mud Lake

NWS forecast and National Blend of Models · updated 2:00 PM MST
RIGHT NOW Idaho Falls Regional Airport (KIDA) · 2:53 PM
Sunny
44° Sunny Feels like 36° · high of 46° near 3 PM
WindSSW 18 mphgusts 30
Humidity70%rising to 96% by morning
Pressure29.91 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 35° · Dry26° by Monday: drier air arrives
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Tuesday, about 6 AMin about 63 hours · 93% chance · rain
LIKELY AMOUNT0.2–0.5 inmost likely 0.3; 1 in 10 over 0.7
LAST RAINNov. 10.87 in · 13 dry days
ALERTS & OUTLOOKS
No watches or warnings for Jefferson County
NWS Pocatello and the Storm Prediction Center · checked 3:15 PM
SUN & MOON
↑ 7:23 AM5:05 PM ↓
9 h 42 m of daylight, 2 minutes less than yesterday
Waxing crescent, 26% lit. Next full moon: Nov. 24.
AIR & POLLEN
11
GOODAir quality index · fine particles
Tomorrow: 34, good. No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
SATURDAY, NOV. 14
SUNDAY, NOV. 15
MONDAY, NOV. 16
TUESDAY, NOV. 17
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
partly cloudy day
partly cloudy night
mostly clear night
mostly clear night
partly cloudy night
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy day
mostly clear night
mostly clear night
partly cloudy night
partly cloudy night
partly cloudy day
partly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
rain
rain
rain
TEMPERATURE °F
46°
28°
50°
31°
52°
34°
CHANCE OF RAIN
93% · 0.09 in Tuesday afternoon 50%
WIND, MPH
16
14
12
8
6
3
2
3
2
2
2
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3
3
3
5
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3
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8
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HOW IT FEELS · DEW POINT
Dry: dew points 26 to 35° ↑ Humid air returns More humid: 36° by Tuesday

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 44° / 22°
SAT Nov. 14 Partly cloudy Partly cloudy
46° 26°
0% rain — SSW 16, gusts 28 A
SUN Nov. 15 Partly cloudy Partly cloudy
51° 27°
0% rain — NNE 3 A
MON Nov. 16 Mostly cloudy Mostly cloudy
52° 31°
0% rain — SW 4 B
TUE Nov. 17 Showers likely; cooler Showers likely; cooler
42° 24°
90% rain 0.2–0.5″ SSW 13 C
WED Nov. 18 Chance of showers Chance of showers
42° 25°
30% rain — ENE 5 B
THU Nov. 19 Showers likely Showers likely
41° 26°
70% rain 0.05–0.5″ S 3 C
FRI Nov. 20 Chance of showers Chance of showers
40° 25°
60% rain up to 0.3″ SW 10 C
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over Mud Lake about 5,000 feet above the ground was over the Pacific off the Northwest three days ago, and over the Pacific Northwest a day ago, about 850 miles back along its path. It came down from about 12,400 feet up, warming and drying as it sank. Near the ground the air came from the Pacific Northwest; at 10,000 feet, from the open Pacific. It feels dry all the same. Traced back 72 hours through NOAA’s hourly RAP analyses and the GFS beyond them, nine paths at each of three heights.

THIS WEEK, TEN YEARS AGO Nov. 11, 2016

The hottest this week has been

66° on Nov. 11, 2016, the hottest reading for this week of the year since 1948. Next is 65° in 1954.

65°
66°
19542016
Source: NOAA RCC-ACIS, the Hamer 4 NW record since 1948.
MILE2
THE GROUND

What Mud Lake stands on

Mud Lake’s center stands about 4,790 ft above sea level. Within three miles the land runs from 4,780 ft to 4,790 ft, a difference of 10 ft: nearly flat ground. The highest named summit within 15 miles is Table Butte, about 5,200 ft, 13 miles northeast.

Under the town center the state geologic map shows Windblown sand deposits, from the Quaternary, less than 2.6 million years old.

The section below crosses 3 rock units mapped at the surface.

Mud Lake, cut in half from south to north

A section south to north, 24 miles through the town center
4,800 ft4,900 ft5,000 ft5,100 ft MUD LAKE4,790 ftHigh point of the line5,130 ftLow point4,780 ft ← SN →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 56×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.

Rock at the surface along the line

Fluvial and lake sediment

Fine-detrital. Age: Quaternary, less than 2.6 million years old. About 10 mi of the line.

Basalt (Pleistocene and Pliocene)

Basalt. Age: Late Pliocene to Pleistocene, less than 3 million years old. About 8 mi of the line.

Windblown sand deposits

Sand. Age: Quaternary, less than 2.6 million years old. About 6 mi of the line.

From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.

Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.

MILE5
THE ALMANAC

Mud Lake’s year

1991–2020 normals · records since 1948 · Hamer 4 NW, 14 mi northeast

Mud Lake has a cold semi-arid climate. Summer afternoons average 89° in July; winter nights fall to about 7° in January. A normal year brings about 20 inches of snow; with the rain, that comes to about 9 inches of water.

29°7°36°11°49°22°60°29°70°37°79°44°89°49°87°47°77°39°62°28°44°17°30°9° JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1234 TODAY MUD LAKE 8.9 in rain and snowmelt
Normal high to low, by month Record high to low, by day Rain by month Freezing
July, average89° / 49°high / low, the warmest month
January, average29° / 7°high / low, the coldest month
Rain and melted snow8.9 inwettest months: May and June
Snow a year20.4 insnowiest: December
Hottest on record105°FJuly 12, 2026
Coldest on record−48°FJanuary 1, 1979
Wettest day on record2.11 inMarch 15, 1963
Snowiest day on record12.0 inDecember 4, 1998
90° days a year29very few reach 100°
Nights at or below 32°203and 54 days that stay below freezing
Climate typeCold semi-aridKöppen BSk

AROUND THE RING

1Freeze seasonfrom the first fall freeze, about Sept. 8, to the last in spring, about June 12 (median dates)
2Highs of 90° and upJuly 17 to Aug. 7; normal highs reach 90°
3Highs below freezingDec. 7 to Feb. 6; normal highs stay below 32°
4Lows below freezingOct. 6 to May 1; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Mud Lake normally reaches 45° and falls to 18°. The record high is 64°, in 1999; the record low −16°, in 1978. The most rain on this date, 0.28 in, fell in 1991.

MONTH BY MONTH
JanFebMarAprMayJunJulAugSepOctNovDec
Normal high29°36°49°60°70°79°89°87°77°62°44°30°
Normal low7°11°22°29°37°44°49°47°39°28°17°9°
Rain and melt, in0.720.440.500.941.471.110.520.510.630.730.560.80
Snow, inches5.83.51.70.80.00.00.00.00.00.11.76.8
Record high55° (1981)58° (1992)79° (2026)86° (1992)93° (2003)102° (1988)105° (2026)105° (1990)99° (2020)88° (1992)70° (2020)60° (1995)
Record low−48° (1979)−46° (1985)−27° (1960)1° (2008)14° (1986)25° (1960)28° (1986)20° (1992)8° (1985)−8° (2019)−26° (1978)−40° (1990)

Normals 1991–2020 and records since 1948 at Hamer 4 NW, 14 miles northeast. NOAA, through RCC-ACIS.

MILE7
ON THE NETWORK

Around Mud Lake on the Forecast Network

Neighboring plates

Idaho Falls ID · 33 MI 33 miles southeast Rexburg ID · 34 MI 34 miles east Pocatello ID · 67 MI 67 miles south Logan UT · 149 MI 149 miles south Boise City ID · 188 MI 188 miles west Meridian ID · 197 MI 197 miles west
FORECASTCITY
Map of Mud Lake, Idaho. Explore the plate
IDAHO · JEFFERSON

Mud Lake

359 people, 4,790 ft above sea level in Jefferson County.

4,790 ftElevation
359People
0 sq miLand
Sunny 44°
SunnyDew point 35°
1

Today in Mud Lake

NEXT 15 HOURS
Now mostly cloudy day 46° 1%
6p partly cloudy night 43° 1%
9p mostly clear night 37° 0%
12a mostly clear night 33° 0%
3a mostly clear night 31° 0%
6a partly cloudy night 29° 1%
Rain
NEXT RAINTuesday about 6 AM · 93%
→
Sat0%
Partly cloudy Partly cloudy
26
46
A
Sun0%
Partly cloudy Partly cloudy
27
51
A
Mon0%
Mostly cloudy Mostly cloudy
31
52
B
Tue90%
Showers likely; cooler Showers likely; cooler
24
42
C
Wed30%
Chance of showers Chance of showers
25
42
B
Thu70%
Showers likely Showers likely
26
41
C
Fri60%
Chance of showers Chance of showers
25
40
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK, TEN YEARS AGO · NOV. 11, 2016

66°, the hottest this week of the year has been since 1948.

2

What Mud Lake stands on

Mud Lake’s center stands about 4,790 ft above sea level. Within three miles the land runs from 4,780 ft to 4,790 ft, a difference of 10 ft: nearly flat ground. The highest named summit within 15 miles is Table Butte, about 5,200 ft, 13 miles northeast.

Mud Lake, south to north Mud Lake4,790 ft ← SN → 24 miles through the town center; vertical exaggeration about 106×. Colors: rock at the surface.
Elevation, center4,790 ft
Within 3 miles4,780 to 4,790 ft
Lie of the landNearly flat (10 ft of relief)
High point nearbyTable Butte, 5,200 ft, 13 mi northeast
Rock at the surfaceWindblown sand deposits
Its ageQuaternary, less than 2.6 million years old
5

Mud Lake’s year

Mud Lake has a cold semi-arid climate. Summer afternoons average 89° in July; winter nights fall to about 7° in January. A normal year brings about 20 inches of snow; with the rain, that comes to about 9 inches of water.

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC 1234 8.9 in
July, average89° / 49° · high / low, the warmest month
January, average29° / 7° · high / low, the coldest month
Rain and melted snow8.9 in · wettest months: May and June
Snow a year20.4 in · snowiest: December
Hottest on record105°F · July 12, 2026
Coldest on record−48°F · January 1, 1979
Wettest day on record2.11 in · March 15, 1963
Snowiest day on record12.0 in · December 4, 1998
90° days a year29 · very few reach 100°
Nights at or below 32°203 · and 54 days that stay below freezing
Climate typeCold semi-arid · Köppen BSk
1Freeze season · from the first fall freeze, about Sept. 8, to the last in spring, about June 12 (median dates)
2Highs of 90° and up · July 17 to Aug. 7; normal highs reach 90°
3Highs below freezing · Dec. 7 to Feb. 6; normal highs stay below 32°
4Lows below freezing · Oct. 6 to May 1; normal lows fall below 32°
NOVEMBER 14 IN THE RECORD

On November 14 Mud Lake normally reaches 45° and falls to 18°. The record high is 64°, in 1999; the record low −16°, in 1978. The most rain on this date, 0.28 in, fell in 1991.

Normals 1991–2020 and records since 1948 at Hamer 4 NW, 14 miles northeast. NOAA, through RCC-ACIS.