Monthly outlook for Foster City, MI: average high 50.7°, average low 39.9°. That is 3.6° above the climate normal for October. Precipitation is expected on 9 days (about 2.9 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 28 October (65°), the coolest 8 November (31.8°).
50.7°/39.9°
Average high / low
+3.6°
Above normal
9 / 5
Wet days / normal
2.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
55.7°
46.2°
+5.3°
7 November – 16 November
42.5°
40.3°
+1.2°
17 November – 26 November
at normal
36.4°
—
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).
Thu, 2959° / 43°0.08
59 °
Foster City, Thursday, 29 October
Light rain. High 59°, low 43°.
Pressure30.03 inHg
Wind10.8 mph W
Humidity60%
Visibility6.2 mi
Dew point38°
Fri, 3053° / 35°0
53 °
Foster City, Friday, 30 October
Partly cloudy. High 53°, low 35°.
Pressure30.36 inHg
Wind4.4 mph W
Humidity57%
Visibility6.2 mi
Dew point34°
Sat, 3158° / 33°0
58 °
Foster City, Saturday, 31 October
Clear. High 58°, low 33°.
Pressure30.36 inHg
Wind5.7 mph S
Humidity61%
Visibility6.2 mi
Dew point41°
Sun, 0165° / 47°0
65 °
Foster City, Sunday, 1 November
Light rain. High 65°, low 47°.
Pressure30.30 inHg
Wind4.6 mph S
Humidity80%
Visibility6.2 mi
Dew point51°
Mon, 0255° / 47°0.65
55 °
Foster City, Monday, 2 November
Rain. High 55°, low 47°.
Pressure30.00 inHg
Wind10 mph SE
Humidity98%
Visibility—
Dew point53°
Tue, 0354° / 46°0.19
54 °
Foster City, Tuesday, 3 November
Rain. High 54°, low 46°.
Pressure29.94 inHg
Wind18.1 mph NW
Humidity68%
Visibility—
Dew point40°
Wed, 0450° / 47°0.79
50 °
Foster City, Wednesday, 4 November
Rain. High 50°, low 47°.
Pressure29.97 inHg
Wind8.7 mph E
Humidity97%
Visibility—
Dew point48°
Thu, 0552° / 47°0.72
52 °
Foster City, Thursday, 5 November
Rain. High 52°, low 47°.
Pressure29.62 inHg
Wind17.5 mph N
Humidity96%
Visibility—
Dew point49°
Fri, 0645° / 37°0.06
45 °
Foster City, Friday, 6 November
Light rain. High 45°, low 37°.
Pressure30.00 inHg
Wind16.3 mph N
Humidity69%
Visibility—
Dew point31°
Sat, 0743° / 33°0
43 °
Foster City, Saturday, 7 November
Overcast. High 43°, low 33°.
Pressure30.33 inHg
Wind9.9 mph N
Humidity60%
Visibility—
Dew point29°
Sun, 0845° / 32°0
45 °
Foster City, Sunday, 8 November
Overcast. High 45°, low 32°.
Pressure30.27 inHg
Wind3 mph NE
Humidity59%
Visibility—
Dew point30°
Mon, 0945° / 33°0.03
45 °
Foster City, Monday, 9 November
Light rain. High 45°, low 33°.
Pressure29.97 inHg
Wind4 mph N
Humidity57%
Visibility—
Dew point29°
Tue, 1043° / 37°0.02
43 °
Foster City, Tuesday, 10 November
Snow. High 43°, low 37°.
Pressure29.59 inHg
Wind10.7 mph N
Humidity59%
Visibility—
Dew point29°
Wed, 1138° / 35°0.12
38 °
Foster City, Wednesday, 11 November
Snow. High 38°, low 35°.
Pressure29.53 inHg
Wind10.8 mph NW
Humidity92%
Visibility—
Dew point35°
Thu, 1240° / 38°0.07
40 °
Foster City, Thursday, 12 November
Light rain. High 40°, low 38°.
Pressure29.65 inHg
Wind12.2 mph NW
Humidity96%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 2435° / 24°0.06
35 °
Foster City, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high35°
Average low24°
Average precipitation0.06 in
Chance of precipitation27%
Record high53° (2017)
Record low-2° (1995)
Wed, 2535° / 24°0.06
35 °
Foster City, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high35°
Average low24°
Average precipitation0.06 in
Chance of precipitation32%
Record high51° (2001)
Record low5° (1985)
Thu, 2634° / 23°0.1
34 °
Foster City, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high34°
Average low23°
Average precipitation0.1 in
Chance of precipitation32%
Record high52° (2022)
Record low-5° (2014)
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.