As of 17:14 MDT

Weather in Ammon, WY

56°Current weather

Ammon, Monday, 12 October, 17:14

Partly cloudy. Feels like 54°. High 60°, low 46°.

Pressure29.77 inHg
Wind8.4 mph NE
Humidity67%
Visibility6.2 mi
Dew point45°

Monthly outlook for Ammon, WY: average high 60.9°, average low 42.5°. That is 2.2° above the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 20 October (75.8°), the coolest 16 October (30.8°).

60.9°/42.5°
Average high / low
+2.2°
Above normal
4 / 3
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 October – 21 October63.6°57.9°+3.2°
22 October – 31 October56.4°53.5°+1.6°
1 November – 10 Novemberat normal48.1°—

October records over 66 years

85.5°4 October 1963All-time high
-9.8°26 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Lost Springs (14 mi).

Tue, 1357° / 42°0.12Rain
57 °Rain

Ammon, Tuesday, 13 October

Rain. High 57°, low 42°.

Pressure29.91 inHg
Wind6.7 mph SE
Humidity60%
Visibility6.2 mi
Dew point43°
Wed, 1447° / 42°0.5Rain
47 °Rain

Ammon, Wednesday, 14 October

Rain. High 47°, low 42°.

Pressure30.18 inHg
Wind6.8 mph SE
Humidity91%
Visibility2.4 mi
Dew point43°
Thu, 1555° / 40°0.2Rain
55 °Rain

Ammon, Thursday, 15 October

Rain. High 55°, low 40°.

Pressure30.50 inHg
Wind17 mph N
Humidity47%
Visibility6.2 mi
Dew point30°
Fri, 1661° / 31°0Clear
61 °Clear

Ammon, Friday, 16 October

Clear. High 61°, low 31°.

Pressure30.56 inHg
Wind14.3 mph SE
Humidity40%
Visibility6.2 mi
Dew point27°
Sat, 1773° / 36°0Clear
73 °Clear

Ammon, Saturday, 17 October

Clear. High 73°, low 36°.

Pressure30.00 inHg
Wind8.1 mph W
Humidity27%
Visibility—
Dew point27°
Sun, 1866° / 47°0Clear
66 °Clear

Ammon, Sunday, 18 October

Clear. High 66°, low 47°.

Pressure29.97 inHg
Wind11.1 mph N
Humidity25%
Visibility—
Dew point25°
Mon, 1968° / 46°0Overcast
68 °Overcast

Ammon, Monday, 19 October

Overcast. High 68°, low 46°.

Pressure30.03 inHg
Wind20.6 mph SE
Humidity30%
Visibility—
Dew point28°
Tue, 2076° / 49°0Mostly clear
76 °Mostly clear

Ammon, Tuesday, 20 October

Mostly clear. High 76°, low 49°.

Pressure29.74 inHg
Wind21.2 mph SE
Humidity24%
Visibility—
Dew point31°
Wed, 2173° / 53°0.02Light rain
73 °Light rain

Ammon, Wednesday, 21 October

Light rain. High 73°, low 53°.

Pressure29.62 inHg
Wind12.7 mph E
Humidity25%
Visibility—
Dew point30°
Thu, 2248° / 40°0.08Light rain
48 °Light rain

Ammon, Thursday, 22 October

Light rain. High 48°, low 40°.

Pressure29.83 inHg
Wind24.5 mph NW
Humidity71%
Visibility—
Dew point37°
Fri, 2353° / 39°0.03Light rain
53 °Light rain

Ammon, Friday, 23 October

Light rain. High 53°, low 39°.

Pressure29.91 inHg
Wind26 mph NW
Humidity48%
Visibility—
Dew point27°
Sat, 2465° / 38°0Clear
65 °Clear

Ammon, Saturday, 24 October

Clear. High 65°, low 38°.

Pressure30.06 inHg
Wind10.2 mph NW
Humidity24%
Visibility—
Dew point20°
Sun, 2554° / 47°0Overcast
54 °Overcast

Ammon, Sunday, 25 October

Overcast. High 54°, low 47°.

Pressure29.97 inHg
Wind16.8 mph N
Humidity42%
Visibility—
Dew point31°
Mon, 2659° / 41°0Partly cloudy
59 °Partly cloudy

Ammon, Monday, 26 October

Partly cloudy. High 59°, low 41°.

Pressure29.94 inHg
Wind10.6 mph W
Humidity42%
Visibility—
Dew point30°
Tue, 2759° / 41°0Partly cloudy
59 °Partly cloudy

Ammon, Tuesday, 27 October

Partly cloudy. High 59°, low 41°.

Pressure29.94 inHg
Wind17 mph W
Humidity37%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2853° / 33°0.07Climate normal
53 °Climate normal

Ammon, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high53°
Average low33°
Average precipitation0.07 in
Chance of precipitation22%
Record high73° (1990)
Record low-5° (2019)
Thu, 2951° / 32°0.07Climate normal
51 °Climate normal

Ammon, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high51°
Average low32°
Average precipitation0.07 in
Chance of precipitation28%
Record high76° (1968)
Record low-1° (2019)
Fri, 3049° / 31°0.04Climate normal
49 °Climate normal

Ammon, Friday, 30 October

Climate normal for this date — 60-year average.

Average high49°
Average low31°
Average precipitation0.04 in
Chance of precipitation23%
Record high73° (1968)
Record low-8° (2019)
Sat, 3148° / 31°0.04Climate normal
48 °Climate normal

Ammon, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation20%
Record high72° (1999)
Record low-2° (1991)
Sun, 0148° / 31°0.05Climate normal
48 °Climate normal

Ammon, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high48°
Average low31°
Average precipitation0.05 in
Chance of precipitation23%
Record high70° (1988)
Record low2° (1991)
Mon, 0248° / 29°0.05Climate normal
48 °Climate normal

Ammon, Monday, 2 November

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.05 in
Chance of precipitation22%
Record high72° (2008)
Record low-10° (1995)
Tue, 0348° / 29°0.04Climate normal
48 °Climate normal

Ammon, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.04 in
Chance of precipitation20%
Record high68° (2015)
Record low-7° (1967)
Wed, 0449° / 29°0.01Climate normal
49 °Climate normal

Ammon, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low29°
Average precipitation0.01 in
Chance of precipitation12%
Record high71° (1983)
Record low4° (1967)
Thu, 0549° / 30°0.02Climate normal
49 °Climate normal

Ammon, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high49°
Average low30°
Average precipitation0.02 in
Chance of precipitation15%
Record high71° (2001)
Record low-2° (1967)
Fri, 0649° / 30°0.03Climate normal
49 °Climate normal

Ammon, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low30°
Average precipitation0.03 in
Chance of precipitation20%
Record high71° (1999)
Record low-6° (1971)
Sat, 0749° / 30°0.02Climate normal
49 °Climate normal

Ammon, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high49°
Average low30°
Average precipitation0.02 in
Chance of precipitation17%
Record high73° (1999)
Record low-4° (2003)
Sun, 0848° / 29°0.05Climate normal
48 °Climate normal

Ammon, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.05 in
Chance of precipitation20%
Record high72° (1999)
Record low2° (2000)
Mon, 0946° / 28°0.04Climate normal
46 °Climate normal

Ammon, Monday, 9 November

Climate normal for this date — 60-year average.

Average high46°
Average low28°
Average precipitation0.04 in
Chance of precipitation27%
Record high70° (2016)
Record low-4° (1960)
Tue, 1046° / 27°0.03Climate normal
46 °Climate normal

Ammon, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high46°
Average low27°
Average precipitation0.03 in
Chance of precipitation22%
Record high71° (2005)
Record low-5° (1986)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Ammon, WY are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Ammon, WY since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.