Monthly outlook for Summit, UT: average high 61.7°, average low 44.7°. That is 1.4° below the climate normal for October. Precipitation is expected on 6 days (about 3.9 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 9 October (84.3°), the coolest 18 October (32.7°).
61.7°/44.7°
Average high / low
−1.4°
Below normal
6 / 3
Wet days / normal
3.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
67.1°
65.3°
+1°
17 October – 26 October
52.6°
61.1°
-4.7°
27 October – 5 November
at normal
55.4°
—
October records over 66 years
86°4 October 2024All-time high
-5.1°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Wheatgrass (14 mi).
Thu, 0882° / 52°0
82 °
Summit, Thursday, 8 October
Clear. High 82°, low 52°.
Pressure30.00 inHg
Wind1.4 mph NW
Humidity23%
Visibility6.2 mi
Dew point37°
Fri, 0984° / 52°0
84 °
Summit, Friday, 9 October
Partly cloudy. High 84°, low 52°.
Pressure29.83 inHg
Wind5.7 mph W
Humidity18%
Visibility6.2 mi
Dew point33°
Sat, 1076° / 54°0.01
76 °
Summit, Saturday, 10 October
Light rain. High 76°, low 54°.
Pressure29.65 inHg
Wind16.2 mph S
Humidity28%
Visibility6.2 mi
Dew point39°
Sun, 1162° / 56°0.93
62 °
Summit, Sunday, 11 October
Rain. High 62°, low 56°.
Pressure29.65 inHg
Wind3.3 mph NW
Humidity91%
Visibility1.8 mi
Dew point53°
Mon, 1265° / 51°0.55
65 °
Summit, Monday, 12 October
Rain. High 65°, low 51°.
Pressure29.83 inHg
Wind6.8 mph W
Humidity67%
Visibility—
Dew point49°
Tue, 1364° / 49°0.05
64 °
Summit, Tuesday, 13 October
Light rain. High 64°, low 49°.
Pressure29.80 inHg
Wind12.6 mph S
Humidity43%
Visibility—
Dew point38°
Wed, 1462° / 49°0.03
62 °
Summit, Wednesday, 14 October
Light rain. High 62°, low 49°.
Pressure29.74 inHg
Wind17.9 mph SW
Humidity47%
Visibility—
Dew point37°
Thu, 1550° / 35°0.43
50 °
Summit, Thursday, 15 October
Snow. High 50°, low 35°.
Pressure29.97 inHg
Wind13.6 mph SW
Humidity96%
Visibility—
Dew point39°
Fri, 1645° / 35°1.3
45 °
Summit, Friday, 16 October
Snow. High 45°, low 35°.
Pressure29.91 inHg
Wind6.6 mph SW
Humidity99%
Visibility—
Dew point41°
Sat, 1740° / 36°0.58
40 °
Summit, Saturday, 17 October
Snow. High 40°, low 36°.
Pressure29.97 inHg
Wind7.1 mph SW
Humidity98%
Visibility—
Dew point38°
Sun, 1846° / 33°0
46 °
Summit, Sunday, 18 October
Clear. High 46°, low 33°.
Pressure30.09 inHg
Wind7.5 mph SW
Humidity75%
Visibility—
Dew point35°
Mon, 1955° / 36°0
55 °
Summit, Monday, 19 October
Overcast. High 55°, low 36°.
Pressure30.18 inHg
Wind5.6 mph SE
Humidity63%
Visibility—
Dew point37°
Tue, 2058° / 40°0
58 °
Summit, Tuesday, 20 October
Partly cloudy. High 58°, low 40°.
Pressure30.27 inHg
Wind8.1 mph N
Humidity61%
Visibility—
Dew point38°
Wed, 2158° / 40°0
58 °
Summit, Wednesday, 21 October
Clear. High 58°, low 40°.
Pressure30.30 inHg
Wind8.9 mph N
Humidity40%
Visibility—
Dew point28°
Thu, 2259° / 42°0
59 °
Summit, Thursday, 22 October
Mostly clear. High 59°, low 42°.
Pressure30.18 inHg
Wind10.9 mph N
Humidity36%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2360° / 36°0.05
60 °
Summit, Friday, 23 October
Climate normal for this date — 60-year average.
Average high60°
Average low36°
Average precipitation0.05 in
Chance of precipitation15%
Record high74° (2003)
Record low3° (1984)
Sat, 2460° / 36°0.04
60 °
Summit, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high60°
Average low36°
Average precipitation0.04 in
Chance of precipitation18%
Record high75° (2014)
Record low3° (1984)
Sun, 2560° / 36°0.05
60 °
Summit, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high60°
Average low36°
Average precipitation0.05 in
Chance of precipitation20%
Record high73° (2007)
Record low17° (1984)
Mon, 2658° / 35°0.04
58 °
Summit, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low35°
Average precipitation0.04 in
Chance of precipitation17%
Record high72° (2008)
Record low11° (1984)
Tue, 2758° / 34°0.04
58 °
Summit, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high58°
Average low34°
Average precipitation0.04 in
Chance of precipitation18%
Record high75° (2008)
Record low14° (1970)
Wed, 2858° / 34°0.05
58 °
Summit, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high58°
Average low34°
Average precipitation0.05 in
Chance of precipitation23%
Record high75° (2008)
Record low13° (1970)
Thu, 2955° / 33°0.05
55 °
Summit, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low33°
Average precipitation0.05 in
Chance of precipitation23%
Record high72° (2008)
Record low8° (1991)
Fri, 3054° / 33°0.02
54 °
Summit, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low33°
Average precipitation0.02 in
Chance of precipitation18%
Record high72° (2008)
Record low-5° (1971)
Sat, 3154° / 33°0.05
54 °
Summit, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low33°
Average precipitation0.05 in
Chance of precipitation25%
Record high70° (2012)
Record low3° (1971)
Sun, 0154° / 32°0.03
54 °
Summit, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low32°
Average precipitation0.03 in
Chance of precipitation13%
Record high69° (2020)
Record low4° (1971)
Mon, 0255° / 31°0.03
55 °
Summit, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high72° (2020)
Record low6° (2004)
Tue, 0355° / 30°0.02
55 °
Summit, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low30°
Average precipitation0.02 in
Chance of precipitation15%
Record high69° (2020)
Record low-3° (1991)
Wed, 0455° / 31°0.02
55 °
Summit, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low31°
Average precipitation0.02 in
Chance of precipitation10%
Record high70° (2009)
Record low10° (2000)
Thu, 0555° / 33°0.02
55 °
Summit, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low33°
Average precipitation0.02 in
Chance of precipitation8%
Record high71° (2020)
Record low1° (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 Summit, UT 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 Summit, UT 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.