Monthly outlook for Foster City, MI: average high 52.5°, average low 41.8°. That is 3.5° above the climate normal for October. Precipitation is expected on 7 days (about 1.0 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 28 October (66.8°), the coolest 7 November (32.1°).
52.5°/41.8°
Average high / low
+3.5°
Above normal
7 / 5
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
56.7°
47.7°
+5°
4 November – 13 November
45.5°
41.9°
+2°
14 November – 23 November
at normal
37.7°
—
October records over 66 years
82.6°2 October 2023All-time high
16.5°24 October 2002All-time low
Climate normals and records are computed from the nearest reference point — Northland (10 mi).
Mon, 2651° / 41°0
51 °
Foster City, Monday, 26 October
Overcast. High 51°, low 41°.
Pressure30.47 inHg
Wind6.3 mph N
Humidity55%
Visibility6.2 mi
Dew point31°
Tue, 2751° / 39°0.03
51 °
Foster City, Tuesday, 27 October
Light rain. High 51°, low 39°.
Pressure30.36 inHg
Wind6.3 mph E
Humidity78%
Visibility6.2 mi
Dew point39°
Wed, 2867° / 48°0.09
67 °
Foster City, Wednesday, 28 October
Light rain. High 67°, low 48°.
Pressure30.09 inHg
Wind7.8 mph S
Humidity70%
Visibility6.2 mi
Dew point54°
Thu, 2963° / 45°0.09
63 °
Foster City, Thursday, 29 October
Light rain. High 63°, low 45°.
Pressure30.00 inHg
Wind4.8 mph NW
Humidity58%
Visibility6.2 mi
Dew point45°
Fri, 3061° / 39°0
61 °
Foster City, Friday, 30 October
Partly cloudy. High 61°, low 39°.
Pressure30.09 inHg
Wind8.8 mph W
Humidity49%
Visibility—
Dew point38°
Sat, 3152° / 36°0.2
52 °
Foster City, Saturday, 31 October
Rain. High 52°, low 36°.
Pressure30.27 inHg
Wind6.7 mph S
Humidity59%
Visibility—
Dew point36°
Sun, 0154° / 47°0.12
54 °
Foster City, Sunday, 1 November
Light rain. High 54°, low 47°.
Pressure30.15 inHg
Wind6.9 mph S
Humidity86%
Visibility—
Dew point48°
Mon, 0255° / 49°0
55 °
Foster City, Monday, 2 November
Overcast. High 55°, low 49°.
Pressure30.24 inHg
Wind5 mph SE
Humidity76%
Visibility—
Dew point47°
Tue, 0356° / 47°0
56 °
Foster City, Tuesday, 3 November
Overcast. High 56°, low 47°.
Pressure30.24 inHg
Wind9.2 mph SE
Humidity66%
Visibility—
Dew point44°
Wed, 0451° / 47°0.12
51 °
Foster City, Wednesday, 4 November
Light rain. High 51°, low 47°.
Pressure30.00 inHg
Wind8.4 mph S
Humidity85%
Visibility—
Dew point46°
Thu, 0544° / 40°0
44 °
Foster City, Thursday, 5 November
Overcast. High 44°, low 40°.
Pressure29.68 inHg
Wind8.9 mph NW
Humidity82%
Visibility—
Dew point37°
Fri, 0647° / 36°0
47 °
Foster City, Friday, 6 November
Overcast. High 47°, low 36°.
Pressure29.65 inHg
Wind11.6 mph NW
Humidity50%
Visibility—
Dew point28°
Sat, 0749° / 32°0
49 °
Foster City, Saturday, 7 November
Mostly clear. High 49°, low 32°.
Pressure29.77 inHg
Wind4.9 mph NW
Humidity57%
Visibility—
Dew point32°
Sun, 0842° / 37°0.14
42 °
Foster City, Sunday, 8 November
Light rain. High 42°, low 37°.
Pressure29.68 inHg
Wind10 mph NE
Humidity85%
Visibility—
Dew point37°
Mon, 0941° / 37°0
41 °
Foster City, Monday, 9 November
Overcast. High 41°, low 37°.
Pressure29.88 inHg
Wind12 mph N
Humidity68%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1041° / 30°0.15
41 °
Foster City, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.15 in
Chance of precipitation37%
Record high66° (2020)
Record low10° (2017)
Wed, 1139° / 28°0.07
39 °
Foster City, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.07 in
Chance of precipitation33%
Record high61° (1964)
Record low10° (1986)
Thu, 1238° / 26°0.09
38 °
Foster City, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.09 in
Chance of precipitation33%
Record high54° (1964)
Record low7° (1986)
Fri, 1338° / 26°0.06
38 °
Foster City, Friday, 13 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.06 in
Chance of precipitation28%
Record high62° (1999)
Record low4° (1986)
Sat, 1439° / 27°0.02
39 °
Foster City, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.02 in
Chance of precipitation18%
Record high60° (2001)
Record low8° (2018)
Sun, 1540° / 28°0.04
40 °
Foster City, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.04 in
Chance of precipitation27%
Record high63° (2001)
Record low6° (2014)
Mon, 1639° / 27°0.06
39 °
Foster City, Monday, 16 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.06 in
Chance of precipitation20%
Record high59° (2023)
Record low12° (2014)
Tue, 1739° / 27°0.07
39 °
Foster City, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.07 in
Chance of precipitation27%
Record high58° (2001)
Record low5° (2014)
Wed, 1839° / 27°0.06
39 °
Foster City, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.06 in
Chance of precipitation30%
Record high59° (2001)
Record low7° (2014)
Thu, 1938° / 26°0.06
38 °
Foster City, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.06 in
Chance of precipitation42%
Record high56° (1999)
Record low-1° (2014)
Fri, 2037° / 26°0.09
37 °
Foster City, Friday, 20 November
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.09 in
Chance of precipitation28%
Record high55° (1982)
Record low5° (2018)
Sat, 2135° / 24°0.1
35 °
Foster City, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high35°
Average low24°
Average precipitation0.1 in
Chance of precipitation28%
Record high56° (1990)
Record low0° (2014)
Sun, 2236° / 24°0.03
36 °
Foster City, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.03 in
Chance of precipitation17%
Record high57° (2012)
Record low-2° (2018)
Mon, 2336° / 24°0.09
36 °
Foster City, Monday, 23 November
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.09 in
Chance of precipitation37%
Record high51° (2001)
Record low4° (2000)
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 Foster City, MI 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 Foster City, MI 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.