As of 09:53 MDT

Weather in Ammon, WY

49°Current weather

Ammon, Sunday, 11 October, 09:53

Light rain. Feels like 49°. High 68°, low 49°.

Pressure29.80 inHg
Wind2.8 mph NE
Humidity68%
Visibility6.2 mi
Dew point39°

Monthly outlook for Ammon, WY: average high 64.4°, average low 45.4°. That is 3.9° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 19 October (74.4°), the coolest 16 October (29.4°).

64.4°/45.4°
Average high / low
+3.9°
Above normal
4 / 3
Wet days / normal
1.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October63.4°58.1°+2.9°
21 October – 30 October66.2°54.5°+6.5°
31 October – 9 Novemberat normal48.3°—

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).

Mon, 1265° / 49°0Mostly clear
65 °Mostly clear

Ammon, Monday, 12 October

Mostly clear. High 65°, low 49°.

Pressure29.85 inHg
Wind10.5 mph N
Humidity56%
Visibility2.5 mi
Dew point41°
Tue, 1357° / 44°0.48Rain
57 °Rain

Ammon, Tuesday, 13 October

Rain. High 57°, low 44°.

Pressure29.91 inHg
Wind11.5 mph SE
Humidity67%
Visibility6.2 mi
Dew point44°
Wed, 1447° / 44°0.28Light rain
47 °Light rain

Ammon, Wednesday, 14 October

Light rain. High 47°, low 44°.

Pressure30.15 inHg
Wind10.4 mph SE
Humidity81%
Visibility5.8 mi
Dew point41°
Thu, 1554° / 41°0.3Light rain
54 °Light rain

Ammon, Thursday, 15 October

Light rain. High 54°, low 41°.

Pressure30.47 inHg
Wind17.5 mph N
Humidity81%
Visibility—
Dew point40°
Fri, 1660° / 29°0Clear
60 °Clear

Ammon, Friday, 16 October

Clear. High 60°, low 29°.

Pressure30.56 inHg
Wind13.7 mph SE
Humidity39%
Visibility—
Dew point26°
Sat, 1773° / 39°0Clear
73 °Clear

Ammon, Saturday, 17 October

Clear. High 73°, low 39°.

Pressure30.03 inHg
Wind20.9 mph W
Humidity24%
Visibility—
Dew point28°
Sun, 1870° / 52°0Partly cloudy
70 °Partly cloudy

Ammon, Sunday, 18 October

Partly cloudy. High 70°, low 52°.

Pressure30.00 inHg
Wind17.9 mph W
Humidity23%
Visibility—
Dew point26°
Mon, 1974° / 51°0Mostly clear
74 °Mostly clear

Ammon, Monday, 19 October

Mostly clear. High 74°, low 51°.

Pressure29.91 inHg
Wind14.1 mph W
Humidity17%
Visibility—
Dew point22°
Tue, 2065° / 50°0.02Light rain
65 °Light rain

Ammon, Tuesday, 20 October

Light rain. High 65°, low 50°.

Pressure29.80 inHg
Wind21 mph NW
Humidity28%
Visibility—
Dew point29°
Wed, 2167° / 45°0Clear
67 °Clear

Ammon, Wednesday, 21 October

Clear. High 67°, low 45°.

Pressure29.91 inHg
Wind15.2 mph NW
Humidity17%
Visibility—
Dew point15°
Thu, 2267° / 49°0Overcast
67 °Overcast

Ammon, Thursday, 22 October

Overcast. High 67°, low 49°.

Pressure30.00 inHg
Wind7.3 mph N
Humidity26%
Visibility—
Dew point26°
Fri, 2372° / 47°0Clear
72 °Clear

Ammon, Friday, 23 October

Clear. High 72°, low 47°.

Pressure30.06 inHg
Wind12.9 mph S
Humidity25%
Visibility—
Dew point26°
Sat, 2470° / 50°0Clear
70 °Clear

Ammon, Saturday, 24 October

Clear. High 70°, low 50°.

Pressure30.00 inHg
Wind8.6 mph S
Humidity20%
Visibility—
Dew point23°
Sun, 2556° / 45°0Mostly clear
56 °Mostly clear

Ammon, Sunday, 25 October

Mostly clear. High 56°, low 45°.

Pressure30.36 inHg
Wind18.5 mph NW
Humidity31%
Visibility—
Dew point22°
Mon, 2665° / 41°0Overcast
65 °Overcast

Ammon, Monday, 26 October

Overcast. High 65°, low 41°.

Pressure30.03 inHg
Wind9.8 mph SE
Humidity22%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2754° / 33°0.03Climate normal
54 °Climate normal

Ammon, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high54°
Average low33°
Average precipitation0.03 in
Chance of precipitation15%
Record high78° (2016)
Record low-1° (2020)
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)

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.