As of 18:17 MDT

Weather in Ammon, ID

75°Current weather

Ammon, Friday, 9 October, 18:17

Partly cloudy. Feels like 73°. High 78°, low 43°.

Pressure29.56 inHg
Wind8 mph SW
Humidity26%
Visibility6.2 mi
Dew point36°

Monthly outlook for Ammon, ID: average high 61.7°, average low 43.6°. That is 1.4° above the climate normal for October. Precipitation is expected on 6 days (about 1.7 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 9 October (78.2°), the coolest 14 October (37.7°).

61.7°/43.6°
Average high / low
+1.4°
Above normal
6 / 3
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October60.5°60.2°+0.1°
19 October – 28 October63.7°56.1°+4.2°
29 October – 7 Novemberat normal49.4°—

October records over 66 years

85.8°2 October 2010All-time high
6.4°30 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Idaho Falls (4 mi).

Sat, 1071° / 45°0.29Rain
71 °Rain

Ammon, Saturday, 10 October

Rain. High 71°, low 45°.

Pressure29.53 inHg
Wind15.5 mph SW
Humidity32%
Visibility6.2 mi
Dew point38°
Sun, 1150° / 43°0.74Rain
50 °Rain

Ammon, Sunday, 11 October

Rain. High 50°, low 43°.

Pressure29.65 inHg
Wind2.6 mph N
Humidity98%
Visibility1.9 mi
Dew point44°
Mon, 1256° / 41°0.18Rain
56 °Rain

Ammon, Monday, 12 October

Rain. High 56°, low 41°.

Pressure29.85 inHg
Wind4.7 mph N
Humidity66%
Visibility6.2 mi
Dew point40°
Tue, 1354° / 40°0.31Rain
54 °Rain

Ammon, Tuesday, 13 October

Rain. High 54°, low 40°.

Pressure29.91 inHg
Wind2.8 mph SW
Humidity74%
Visibility6.2 mi
Dew point40°
Wed, 1449° / 38°0.02Light rain
49 °Light rain

Ammon, Wednesday, 14 October

Light rain. High 49°, low 38°.

Pressure30.12 inHg
Wind7.7 mph SW
Humidity79%
Visibility—
Dew point39°
Thu, 1558° / 39°0Mostly clear
58 °Mostly clear

Ammon, Thursday, 15 October

Mostly clear. High 58°, low 39°.

Pressure30.30 inHg
Wind5.5 mph SW
Humidity56%
Visibility—
Dew point35°
Fri, 1661° / 44°0Clear
61 °Clear

Ammon, Friday, 16 October

Clear. High 61°, low 44°.

Pressure30.42 inHg
Wind5.1 mph NW
Humidity46%
Visibility—
Dew point34°
Sat, 1762° / 44°0Overcast
62 °Overcast

Ammon, Saturday, 17 October

Overcast. High 62°, low 44°.

Pressure30.30 inHg
Wind5.6 mph W
Humidity36%
Visibility—
Dew point29°
Sun, 1864° / 46°0Overcast
64 °Overcast

Ammon, Sunday, 18 October

Overcast. High 64°, low 46°.

Pressure30.18 inHg
Wind5.7 mph W
Humidity39%
Visibility—
Dew point32°
Mon, 1967° / 46°0Clear
67 °Clear

Ammon, Monday, 19 October

Clear. High 67°, low 46°.

Pressure30.12 inHg
Wind5.1 mph W
Humidity34%
Visibility—
Dew point31°
Tue, 2068° / 48°0Clear
68 °Clear

Ammon, Tuesday, 20 October

Clear. High 68°, low 48°.

Pressure30.06 inHg
Wind5.8 mph W
Humidity31%
Visibility—
Dew point30°
Wed, 2170° / 49°0Clear
70 °Clear

Ammon, Wednesday, 21 October

Clear. High 70°, low 49°.

Pressure30.09 inHg
Wind5.3 mph E
Humidity31%
Visibility—
Dew point31°
Thu, 2256° / 46°0.06Light rain
56 °Light rain

Ammon, Thursday, 22 October

Light rain. High 56°, low 46°.

Pressure30.00 inHg
Wind23.4 mph SW
Humidity58%
Visibility—
Dew point38°
Fri, 2359° / 41°0Overcast
59 °Overcast

Ammon, Friday, 23 October

Overcast. High 59°, low 41°.

Pressure29.85 inHg
Wind11.3 mph NE
Humidity50%
Visibility—
Dew point33°
Sat, 2463° / 46°0.04Light rain
63 °Light rain

Ammon, Saturday, 24 October

Light rain. High 63°, low 46°.

Pressure29.85 inHg
Wind7.7 mph NE
Humidity56%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2555° / 33°0.04Climate normal
55 °Climate normal

Ammon, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high55°
Average low33°
Average precipitation0.04 in
Chance of precipitation23%
Record high74° (2014)
Record low14° (1997)
Mon, 2654° / 34°0.06Climate normal
54 °Climate normal

Ammon, Monday, 26 October

Climate normal for this date — 60-year average.

Average high54°
Average low34°
Average precipitation0.06 in
Chance of precipitation28%
Record high71° (1999)
Record low14° (2020)
Tue, 2754° / 32°0.02Climate normal
54 °Climate normal

Ammon, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high54°
Average low32°
Average precipitation0.02 in
Chance of precipitation15%
Record high71° (1977)
Record low14° (1996)
Wed, 2853° / 33°0.06Climate normal
53 °Climate normal

Ammon, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high53°
Average low33°
Average precipitation0.06 in
Chance of precipitation27%
Record high69° (1990)
Record low16° (2019)
Thu, 2951° / 32°0.05Climate normal
51 °Climate normal

Ammon, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high51°
Average low32°
Average precipitation0.05 in
Chance of precipitation23%
Record high70° (1964)
Record low12° (2019)
Fri, 3050° / 31°0.06Climate normal
50 °Climate normal

Ammon, Friday, 30 October

Climate normal for this date — 60-year average.

Average high50°
Average low31°
Average precipitation0.06 in
Chance of precipitation25%
Record high70° (1962)
Record low6° (2019)
Sat, 3150° / 31°0.03Climate normal
50 °Climate normal

Ammon, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high70° (2008)
Record low13° (2019)
Sun, 0149° / 31°0.02Climate normal
49 °Climate normal

Ammon, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high49°
Average low31°
Average precipitation0.02 in
Chance of precipitation23%
Record high68° (1988)
Record low11° (1989)
Mon, 0249° / 30°0.04Climate normal
49 °Climate normal

Ammon, Monday, 2 November

Climate normal for this date — 60-year average.

Average high49°
Average low30°
Average precipitation0.04 in
Chance of precipitation23%
Record high65° (1965)
Record low3° (1991)
Tue, 0349° / 29°0.02Climate normal
49 °Climate normal

Ammon, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°
Average low29°
Average precipitation0.02 in
Chance of precipitation17%
Record high65° (1965)
Record low2° (1991)
Wed, 0449° / 30°0.04Climate normal
49 °Climate normal

Ammon, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low30°
Average precipitation0.04 in
Chance of precipitation18%
Record high65° (2020)
Record low15° (1991)
Thu, 0549° / 31°0.04Climate normal
49 °Climate normal

Ammon, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high49°
Average low31°
Average precipitation0.04 in
Chance of precipitation22%
Record high66° (2020)
Record low11° (1961)
Fri, 0649° / 31°0.05Climate normal
49 °Climate normal

Ammon, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low31°
Average precipitation0.05 in
Chance of precipitation25%
Record high69° (1999)
Record low14° (1961)
Sat, 0748° / 31°0.04Climate normal
48 °Climate normal

Ammon, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation30%
Record high70° (1999)
Record low11° (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, ID 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, ID 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.