As of 03:25 CDT

Weather in Foster City, MI

42°

Foster City, Wednesday, 21 October, 03:25

Clear. Feels like 38°. High 68°, low 38°.

Pressure30.24 inHg

Wind6.5 mph SW

Humidity95%

Visibility6.2 mi

Dew point41°

See detailed hourly forecast

Monthly outlook for Foster City, MI: average high 51.3°, average low 35.9°. That is 1.8° above the climate normal for October. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 21 October (67.7°), the coolest 31 October (29°).

51.3°/35.9°

Average high / low

+1.8°

Above normal

5 / 5

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
21 October – 30 October	53.6°	49.5°	+2.3°
31 October – 9 November	47.6°	44.7°	+1.6°
10 November – 19 November	at normal	39°	—

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, 2262° / 35°

62 °

Foster City, Thursday, 22 October

Partly cloudy. High 62°, low 35°.

Pressure30.33 inHg

Wind1.6 mph E

Humidity68%

Visibility6.2 mi

Dew point45°

Fri, 2362° / 40°

62 °

Foster City, Friday, 23 October

Overcast. High 62°, low 40°.

Pressure30.33 inHg

Wind6 mph S

Humidity75%

Visibility6.2 mi

Dew point49°

Sat, 2464° / 50°

64 °

Foster City, Saturday, 24 October

Overcast. High 64°, low 50°.

Pressure30.30 inHg

Wind8.4 mph S

Humidity85%

Visibility6.2 mi

Dew point52°

Sun, 2558° / 45°

0.25

58 °

Foster City, Sunday, 25 October

Light rain. High 58°, low 45°.

Pressure30.36 inHg

Wind9.2 mph SW

Humidity98%

Visibility—

Dew point54°

Mon, 2647° / 37°

0.07

47 °

Foster City, Monday, 26 October

Light rain. High 47°, low 37°.

Pressure30.39 inHg

Wind7 mph NE

Humidity62%

Visibility—

Dew point34°

Tue, 2745° / 31°

45 °

Foster City, Tuesday, 27 October

Clear. High 45°, low 31°.

Pressure30.39 inHg

Wind7.1 mph NE

Humidity48%

Visibility—

Dew point24°

Wed, 2847° / 30°

0.27

47 °

Foster City, Wednesday, 28 October

Rain. High 47°, low 30°.

Pressure30.15 inHg

Wind6 mph SE

Humidity58%

Visibility—

Dew point31°

Thu, 2943° / 35°

0.24

43 °

Foster City, Thursday, 29 October

Rain. High 43°, low 35°.

Pressure29.97 inHg

Wind15.9 mph NW

Humidity65%

Visibility—

Dew point30°

Fri, 3041° / 29°

41 °

Foster City, Friday, 30 October

Overcast. High 41°, low 29°.

Pressure30.24 inHg

Wind10.3 mph NW

Humidity46%

Visibility—

Dew point20°

Sat, 3147° / 29°

47 °

Foster City, Saturday, 31 October

Partly cloudy. High 47°, low 29°.

Pressure30.24 inHg

Wind12.3 mph S

Humidity40%

Visibility—

Dew point21°

Sun, 0143° / 37°

0.05

43 °

Foster City, Sunday, 1 November

Light rain. High 43°, low 37°.

Pressure30.00 inHg

Wind8.7 mph SW

Humidity90%

Visibility—

Dew point37°

Mon, 0253° / 40°

0.01

53 °

Foster City, Monday, 2 November

Light rain. High 53°, low 40°.

Pressure30.03 inHg

Wind3.9 mph E

Humidity71%

Visibility—

Dew point42°

Tue, 0350° / 35°

50 °

Foster City, Tuesday, 3 November

Overcast. High 50°, low 35°.

Pressure30.30 inHg

Wind6.5 mph NW

Humidity43%

Visibility—

Dew point22°

Wed, 0447° / 30°

47 °

Foster City, Wednesday, 4 November

Overcast. High 47°, low 30°.

Pressure30.24 inHg

Wind4.4 mph NE

Humidity40%

Visibility—

Dew point21°

Thu, 0546° / 32°

46 °

Foster City, Thursday, 5 November

Overcast. High 46°, low 32°.

Pressure30.39 inHg

Wind6.8 mph SW

Humidity48%

Visibility—

Dew point26°

From day 17 onward the outlook is built from 60-year climate statistics

Fri, 0644° / 32°

0.08

44 °

Foster City, Friday, 6 November

Climate normal for this date — 60-year average.

Average high44°

Average low32°

Average precipitation0.08 in

Chance of precipitation25%

Record high71° (2020)

Record low10° (1991)

Sat, 0743° / 30°

0.03

43 °

Foster City, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high43°

Average low30°

Average precipitation0.03 in

Chance of precipitation22%

Record high68° (2020)

Record low6° (1991)

Sun, 0843° / 31°

0.05

43 °

Foster City, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high43°

Average low31°

Average precipitation0.05 in

Chance of precipitation20%

Record high67° (2020)

Record low8° (1991)

Mon, 0943° / 30°

0.08

43 °

Foster City, Monday, 9 November

Climate normal for this date — 60-year average.

Average high43°

Average low30°

Average precipitation0.08 in

Chance of precipitation38%

Record high70° (2020)

Record low11° (2003)

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)

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.