Monthly outlook for Saint Johns, ID: average high 56.5°, average low 42°. That is 1.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 17 October (66.3°), the coolest 31 October (36.8°).
56.5°/42°
Average high / low
+1.4°
Above normal
4 / 4
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
59.9°
56.2°
+2°
26 October – 4 November
50.8°
49.3°
+0.8°
5 November – 14 November
at normal
44.6°
—
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).
Sat, 1766° / 44°0
66 °
Saint Johns, Saturday, 17 October
Clear. High 66°, low 44°.
Pressure30.33 inHg
Wind4.6 mph S
Humidity47%
Visibility6.2 mi
Dew point36°
Sun, 1861° / 40°0
61 °
Saint Johns, Sunday, 18 October
Partly cloudy. High 61°, low 40°.
Pressure30.12 inHg
Wind3.6 mph S
Humidity43%
Visibility6.2 mi
Dew point34°
Mon, 1960° / 41°0
60 °
Saint Johns, Monday, 19 October
Clear. High 60°, low 41°.
Pressure30.00 inHg
Wind4.5 mph S
Humidity47%
Visibility6.2 mi
Dew point36°
Tue, 2060° / 44°0.01
60 °
Saint Johns, Tuesday, 20 October
Light rain. High 60°, low 44°.
Pressure29.97 inHg
Wind8 mph S
Humidity57%
Visibility6.2 mi
Dew point43°
Wed, 2164° / 42°0
64 °
Saint Johns, Wednesday, 21 October
Clear. High 64°, low 42°.
Pressure30.03 inHg
Wind6.2 mph S
Humidity54%
Visibility—
Dew point40°
Thu, 2266° / 49°0.07
66 °
Saint Johns, Thursday, 22 October
Light rain. High 66°, low 49°.
Pressure29.85 inHg
Wind9.6 mph SE
Humidity49%
Visibility—
Dew point42°
Fri, 2355° / 46°0.25
55 °
Saint Johns, Friday, 23 October
Light rain. High 55°, low 46°.
Pressure29.85 inHg
Wind12.5 mph SW
Humidity54%
Visibility—
Dew point37°
Sat, 2453° / 43°0
53 °
Saint Johns, Saturday, 24 October
Overcast. High 53°, low 43°.
Pressure30.03 inHg
Wind9.8 mph NW
Humidity66%
Visibility—
Dew point38°
Sun, 2552° / 43°0.01
52 °
Saint Johns, Sunday, 25 October
Light rain. High 52°, low 43°.
Pressure30.09 inHg
Wind7.5 mph N
Humidity69%
Visibility—
Dew point37°
Mon, 2652° / 43°0
52 °
Saint Johns, Monday, 26 October
Overcast. High 52°, low 43°.
Pressure29.88 inHg
Wind7.9 mph SE
Humidity53%
Visibility—
Dew point34°
Tue, 2752° / 42°0.01
52 °
Saint Johns, Tuesday, 27 October
Light rain. High 52°, low 42°.
Pressure29.74 inHg
Wind5.1 mph NW
Humidity55%
Visibility—
Dew point35°
Wed, 2853° / 42°0.06
53 °
Saint Johns, Wednesday, 28 October
Light rain. High 53°, low 42°.
Pressure29.88 inHg
Wind14.7 mph SW
Humidity60%
Visibility—
Dew point36°
Thu, 2945° / 38°0.37
45 °
Saint Johns, Thursday, 29 October
Rain. High 45°, low 38°.
Pressure30.00 inHg
Wind8.3 mph N
Humidity98%
Visibility—
Dew point39°
Fri, 3051° / 40°0
51 °
Saint Johns, Friday, 30 October
Light rain. High 51°, low 40°.
Pressure29.94 inHg
Wind12.4 mph NW
Humidity72%
Visibility—
Dew point38°
Sat, 3152° / 37°0
52 °
Saint Johns, Saturday, 31 October
Clear. High 52°, low 37°.
Pressure30.06 inHg
Wind6.1 mph S
Humidity58%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0148° / 32°0.04
48 °
Saint Johns, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.04 in
Chance of precipitation25%
Record high65° (1965)
Record low8° (1971)
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)
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.