Monthly outlook for Grant, ID: average high 59.6°, average low 40.3°. That is 0° below the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 9 October (81.8°), the coolest 16 October (28°).
59.6°/40.3°
Average high / low
−0°
Below normal
5 / 3
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
61°
60.6°
+0.2°
18 October – 27 October
57.3°
56.8°
+0.3°
28 October – 6 November
at normal
49.8°
—
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 (11 mi).
Fri, 0982° / 43°0
82 °
Grant, Friday, 9 October
Clear. High 82°, low 43°.
Pressure29.77 inHg
Wind2.4 mph SW
Humidity26%
Visibility6.2 mi
Dew point32°
Sat, 1071° / 53°0.16
71 °
Grant, Saturday, 10 October
Rain. High 71°, low 53°.
Pressure29.56 inHg
Wind7.7 mph SW
Humidity44%
Visibility6.2 mi
Dew point42°
Sun, 1155° / 49°0.52
55 °
Grant, Sunday, 11 October
Rain. High 55°, low 49°.
Pressure29.65 inHg
Wind5.5 mph NE
Humidity90%
Visibility3.6 mi
Dew point50°
Mon, 1260° / 43°0.62
60 °
Grant, Monday, 12 October
Rain. High 60°, low 43°.
Pressure29.80 inHg
Wind11.4 mph NW
Humidity73%
Visibility—
Dew point44°
Tue, 1361° / 46°0.01
61 °
Grant, Tuesday, 13 October
Light rain. High 61°, low 46°.
Pressure29.85 inHg
Wind6.8 mph NW
Humidity66%
Visibility—
Dew point43°
Wed, 1457° / 41°0.02
57 °
Grant, Wednesday, 14 October
Light rain. High 57°, low 41°.
Pressure29.62 inHg
Wind23.6 mph SW
Humidity48%
Visibility—
Dew point35°
Thu, 1541° / 35°0.01
41 °
Grant, Thursday, 15 October
Light snow. High 41°, low 35°.
Pressure30.24 inHg
Wind18.1 mph N
Humidity48%
Visibility—
Dew point21°
Fri, 1651° / 28°0
51 °
Grant, Friday, 16 October
Clear. High 51°, low 28°.
Pressure30.42 inHg
Wind7.4 mph NE
Humidity42%
Visibility—
Dew point21°
Sat, 1755° / 33°0
55 °
Grant, Saturday, 17 October
Overcast. High 55°, low 33°.
Pressure30.24 inHg
Wind6.2 mph S
Humidity39%
Visibility—
Dew point23°
Sun, 1857° / 36°0
57 °
Grant, Sunday, 18 October
Clear. High 57°, low 36°.
Pressure30.18 inHg
Wind10.5 mph SW
Humidity35%
Visibility—
Dew point23°
Mon, 1959° / 38°0
59 °
Grant, Monday, 19 October
Partly cloudy. High 59°, low 38°.
Pressure30.24 inHg
Wind8.6 mph SW
Humidity39%
Visibility—
Dew point27°
Tue, 2063° / 39°0
63 °
Grant, Tuesday, 20 October
Mostly clear. High 63°, low 39°.
Pressure30.18 inHg
Wind7.8 mph SW
Humidity34%
Visibility—
Dew point25°
Wed, 2161° / 46°0.02
61 °
Grant, Wednesday, 21 October
Light rain. High 61°, low 46°.
Pressure29.62 inHg
Wind32.2 mph SW
Humidity27%
Visibility—
Dew point25°
Thu, 2253° / 42°0.07
53 °
Grant, Thursday, 22 October
Light rain. High 53°, low 42°.
Pressure29.62 inHg
Wind20 mph SW
Humidity83%
Visibility—
Dew point38°
Fri, 2350° / 38°0.05
50 °
Grant, Friday, 23 October
Light rain. High 50°, low 38°.
Pressure29.74 inHg
Wind26.2 mph SW
Humidity54%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2455° / 35°0.05
55 °
Grant, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high55°
Average low35°
Average precipitation0.05 in
Chance of precipitation27%
Record high72° (1992)
Record low18° (1975)
Sun, 2555° / 33°0.04
55 °
Grant, 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°0.06
54 °
Grant, 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°0.02
54 °
Grant, 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°0.06
53 °
Grant, 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°0.05
51 °
Grant, 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°0.06
50 °
Grant, 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°0.03
50 °
Grant, 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°0.02
49 °
Grant, 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°0.04
49 °
Grant, 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°0.02
49 °
Grant, 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°0.04
49 °
Grant, 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°0.04
49 °
Grant, 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°0.05
49 °
Grant, 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)
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 Grant, 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 Grant, 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.