Monthly outlook for Saint Johns, ID: average high 57.2°, average low 41.9°. That is 2.1° above the climate normal for October. Precipitation is expected on 6 days (about 1.6 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 17 October (68.4°), the coolest 1 November (33°).
57.2°/41.9°
Average high / low
+2.1°
Above normal
6 / 4
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
61.7°
55.7°
+3.3°
27 October – 5 November
49.7°
48.9°
+0.5°
6 November – 15 November
at normal
44°
—
October records over 66 years
84.9°2 October 2010All-time high
5.7°27 October 1970All-time low
Climate normals and records are computed from the nearest reference point — Daniels (13 mi).
Sun, 1868° / 40°0
68 °
Saint Johns, Sunday, 18 October
Overcast. High 68°, low 40°.
Pressure30.12 inHg
Wind3.2 mph S
Humidity40%
Visibility6.2 mi
Dew point32°
Mon, 1961° / 40°0
61 °
Saint Johns, Monday, 19 October
Clear. High 61°, low 40°.
Pressure30.03 inHg
Wind3.9 mph S
Humidity45%
Visibility6.2 mi
Dew point36°
Tue, 2061° / 42°0.04
61 °
Saint Johns, Tuesday, 20 October
Light rain. High 61°, low 42°.
Pressure30.06 inHg
Wind3.2 mph SE
Humidity61%
Visibility6.2 mi
Dew point44°
Wed, 2164° / 44°0
64 °
Saint Johns, Wednesday, 21 October
Partly cloudy. High 64°, low 44°.
Pressure30.06 inHg
Wind2.9 mph E
Humidity53%
Visibility6.2 mi
Dew point44°
Thu, 2262° / 46°0.02
62 °
Saint Johns, Thursday, 22 October
Light rain. High 62°, low 46°.
Pressure30.00 inHg
Wind10.4 mph S
Humidity67%
Visibility—
Dew point46°
Fri, 2354° / 45°0.47
54 °
Saint Johns, Friday, 23 October
Rain. High 54°, low 45°.
Pressure29.88 inHg
Wind8.8 mph S
Humidity85%
Visibility—
Dew point43°
Sat, 2456° / 44°0.23
56 °
Saint Johns, Saturday, 24 October
Rain. High 56°, low 44°.
Pressure30.12 inHg
Wind3.5 mph SW
Humidity62%
Visibility—
Dew point38°
Sun, 2560° / 43°0
60 °
Saint Johns, Sunday, 25 October
Clear. High 60°, low 43°.
Pressure30.18 inHg
Wind2.6 mph W
Humidity58%
Visibility—
Dew point38°
Mon, 2664° / 46°0
64 °
Saint Johns, Monday, 26 October
Mostly clear. High 64°, low 46°.
Pressure30.03 inHg
Wind4.9 mph S
Humidity37%
Visibility—
Dew point31°
Tue, 2753° / 48°0.03
53 °
Saint Johns, Tuesday, 27 October
Light rain. High 53°, low 48°.
Pressure29.85 inHg
Wind8.2 mph S
Humidity46%
Visibility—
Dew point32°
Wed, 2857° / 48°0.37
57 °
Saint Johns, Wednesday, 28 October
Rain. High 57°, low 48°.
Pressure29.91 inHg
Wind11.2 mph SW
Humidity63%
Visibility—
Dew point42°
Thu, 2947° / 41°0.2
47 °
Saint Johns, Thursday, 29 October
Light rain. High 47°, low 41°.
Pressure29.97 inHg
Wind8.2 mph SE
Humidity61%
Visibility—
Dew point31°
Fri, 3046° / 36°0
46 °
Saint Johns, Friday, 30 October
Partly cloudy. High 46°, low 36°.
Pressure29.94 inHg
Wind14 mph SW
Humidity48%
Visibility—
Dew point25°
Sat, 3153° / 35°0.24
53 °
Saint Johns, Saturday, 31 October
Snow. High 53°, low 35°.
Pressure29.77 inHg
Wind24.4 mph S
Humidity56%
Visibility—
Dew point34°
Sun, 0142° / 33°0.03
42 °
Saint Johns, Sunday, 1 November
Light snow. High 42°, low 33°.
Pressure30.24 inHg
Wind6.2 mph NW
Humidity43%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0247° / 32°0.05
47 °
Saint Johns, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.05 in
Chance of precipitation25%
Record high63° (1965)
Record low1° (1991)
Tue, 0348° / 31°0.04
48 °
Saint Johns, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation18%
Record high65° (1962)
Record low3° (1991)
Wed, 0448° / 32°0.04
48 °
Saint Johns, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.04 in
Chance of precipitation22%
Record high63° (2020)
Record low18° (2003)
Thu, 0548° / 33°0.05
48 °
Saint Johns, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.05 in
Chance of precipitation32%
Record high64° (1980)
Record low7° (1961)
Fri, 0647° / 33°0.04
47 °
Saint Johns, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.04 in
Chance of precipitation27%
Record high65° (1999)
Record low2° (1971)
Sat, 0747° / 32°0.08
47 °
Saint Johns, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.08 in
Chance of precipitation37%
Record high64° (1999)
Record low14° (2000)
Sun, 0845° / 31°0.09
45 °
Saint Johns, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.09 in
Chance of precipitation35%
Record high61° (1976)
Record low13° (2017)
Mon, 0944° / 30°0.08
44 °
Saint Johns, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.08 in
Chance of precipitation33%
Record high60° (2016)
Record low17° (1966)
Tue, 1044° / 30°0.05
44 °
Saint Johns, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.05 in
Chance of precipitation30%
Record high63° (2016)
Record low6° (2000)
Wed, 1144° / 30°0.06
44 °
Saint Johns, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.06 in
Chance of precipitation28%
Record high61° (1989)
Record low6° (2000)
Thu, 1244° / 29°0.07
44 °
Saint Johns, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.07 in
Chance of precipitation28%
Record high63° (1999)
Record low10° (2000)
Fri, 1343° / 29°0.06
43 °
Saint Johns, Friday, 13 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.06 in
Chance of precipitation37%
Record high62° (1999)
Record low5° (1978)
Sat, 1441° / 28°0.07
41 °
Saint Johns, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.07 in
Chance of precipitation27%
Record high64° (1999)
Record low-5° (1978)
Sun, 1542° / 27°0.02
42 °
Saint Johns, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.02 in
Chance of precipitation20%
Record high62° (1999)
Record low-5° (1978)
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 Saint Johns, 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 Saint Johns, 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.