As of 00:08 PDT

Weather in Foster, CA

45°

Foster, Thursday, 8 October, 00:08

Clear. Feels like 45°. High 81°, low 40°.

Pressure30.00 inHg

Wind1.8 mph NE

Humidity53%

Visibility6.2 mi

Dew point29°

See detailed hourly forecast

Monthly outlook for Foster, CA: average high 64.1°, average low 36.9°. That is 1.7° below the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 1.2 inches. The warmest day looks like 8 October (81.1°), the coolest 15 October (25.2°).

64.1°/36.9°

Average high / low

−1.7°

Below normal

0 / 3

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	63.8°	68.3°	-2.5°
18 October – 27 October	64.6°	63.6°	+0.5°
28 October – 6 November	at normal	58°	—

October records over 66 years

93°8 October 1996All-time high

24.3°27 October 2004All-time low

Climate normals and records are computed from the nearest reference point — Etna (14 mi).

Fri, 0978° / 39°

78 °

Foster, Friday, 9 October

Mostly clear. High 78°, low 39°.

Pressure29.80 inHg

Wind5.4 mph W

Humidity21%

Visibility6.2 mi

Dew point26°

Sat, 1059° / 40°

59 °

Foster, Saturday, 10 October

Mostly clear. High 59°, low 40°.

Pressure29.71 inHg

Wind6.4 mph NE

Humidity52%

Visibility6.2 mi

Dew point31°

Sun, 1152° / 38°

52 °

Foster, Sunday, 11 October

Clear. High 52°, low 38°.

Pressure29.74 inHg

Wind13 mph NE

Humidity57%

Visibility6.2 mi

Dew point22°

Mon, 1261° / 37°

61 °

Foster, Monday, 12 October

Clear. High 61°, low 37°.

Pressure29.94 inHg

Wind6.4 mph NE

Humidity47%

Visibility—

Dew point31°

Tue, 1359° / 33°

59 °

Foster, Tuesday, 13 October

Mostly clear. High 59°, low 33°.

Pressure29.91 inHg

Wind6.3 mph NE

Humidity39%

Visibility—

Dew point26°

Wed, 1450° / 27°

50 °

Foster, Wednesday, 14 October

Clear. High 50°, low 27°.

Pressure30.03 inHg

Wind7.1 mph NE

Humidity35%

Visibility—

Dew point15°

Thu, 1559° / 25°

59 °

Foster, Thursday, 15 October

Partly cloudy. High 59°, low 25°.

Pressure30.15 inHg

Wind7.1 mph NE

Humidity18%

Visibility—

Dew point5°

Fri, 1671° / 37°

71 °

Foster, Friday, 16 October

Clear. High 71°, low 37°.

Pressure30.18 inHg

Wind5.8 mph E

Humidity7%

Visibility—

Dew point-4°

Sat, 1769° / 42°

69 °

Foster, Saturday, 17 October

Overcast. High 69°, low 42°.

Pressure30.15 inHg

Wind5.3 mph NE

Humidity10%

Visibility—

Dew point3°

Sun, 1871° / 43°

71 °

Foster, Sunday, 18 October

Clear. High 71°, low 43°.

Pressure29.97 inHg

Wind5.3 mph E

Humidity9%

Visibility—

Dew point4°

Mon, 1970° / 43°

70 °

Foster, Monday, 19 October

Clear. High 70°, low 43°.

Pressure30.03 inHg

Wind5.6 mph N

Humidity13%

Visibility—

Dew point10°

Tue, 2070° / 44°

70 °

Foster, Tuesday, 20 October

Overcast. High 70°, low 44°.

Pressure30.06 inHg

Wind5.5 mph N

Humidity15%

Visibility—

Dew point14°

Wed, 2167° / 40°

67 °

Foster, Wednesday, 21 October

Partly cloudy. High 67°, low 40°.

Pressure30.15 inHg

Wind4.4 mph NW

Humidity23%

Visibility—

Dew point22°

Thu, 2254° / 32°

54 °

Foster, Thursday, 22 October

Overcast. High 54°, low 32°.

Pressure30.18 inHg

Wind6.9 mph NE

Humidity33%

Visibility—

Dew point19°

Fri, 2355° / 31°

55 °

Foster, Friday, 23 October

Clear. High 55°, low 31°.

Pressure29.97 inHg

Wind5.5 mph E

Humidity20%

Visibility—

Dew point12°

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

Sat, 2463° / 42°

0.15

63 °

Foster, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high63°

Average low42°

Average precipitation0.15 in

Chance of precipitation25%

Record high77° (1990)

Record low29° (2024)

Sun, 2562° / 41°

0.14

62 °

Foster, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high62°

Average low41°

Average precipitation0.14 in

Chance of precipitation33%

Record high80° (1988)

Record low32° (2012)

Mon, 2661° / 41°

0.11

61 °

Foster, Monday, 26 October

Climate normal for this date — 60-year average.

Average high61°

Average low41°

Average precipitation0.11 in

Chance of precipitation32%

Record high81° (2008)

Record low27° (2023)

Tue, 2761° / 40°

0.08

61 °

Foster, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high61°

Average low40°

Average precipitation0.08 in

Chance of precipitation22%

Record high80° (2003)

Record low24° (2004)

Wed, 2859° / 40°

0.13

59 °

Foster, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high59°

Average low40°

Average precipitation0.13 in

Chance of precipitation35%

Record high79° (2003)

Record low26° (1971)

Thu, 2958° / 39°

0.13

58 °

Foster, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high58°

Average low39°

Average precipitation0.13 in

Chance of precipitation33%

Record high79° (2017)

Record low26° (1971)

Fri, 3058° / 39°

0.11

58 °

Foster, Friday, 30 October

Climate normal for this date — 60-year average.

Average high58°

Average low39°

Average precipitation0.11 in

Chance of precipitation32%

Record high76° (2020)

Record low25° (2019)

Sat, 3159° / 39°

0.09

59 °

Foster, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high59°

Average low39°

Average precipitation0.09 in

Chance of precipitation20%

Record high74° (1966)

Record low29° (1972)

Sun, 0159° / 39°

0.09

59 °

Foster, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high59°

Average low39°

Average precipitation0.09 in

Chance of precipitation32%

Record high78° (2020)

Record low29° (2002)

Mon, 0259° / 39°

0.11

59 °

Foster, Monday, 2 November

Climate normal for this date — 60-year average.

Average high59°

Average low39°

Average precipitation0.11 in

Chance of precipitation33%

Record high80° (2020)

Record low30° (1971)

Tue, 0359° / 40°

0.11

59 °

Foster, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high59°

Average low40°

Average precipitation0.11 in

Chance of precipitation28%

Record high74° (1976)

Record low24° (2022)

Wed, 0458° / 40°

0.1

58 °

Foster, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high58°

Average low40°

Average precipitation0.1 in

Chance of precipitation32%

Record high75° (1976)

Record low30° (2003)

Thu, 0556° / 40°

0.15

56 °

Foster, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high56°

Average low40°

Average precipitation0.15 in

Chance of precipitation38%

Record high75° (2020)

Record low30° (2017)

Fri, 0655° / 39°

0.16

55 °

Foster, Friday, 6 November

Climate normal for this date — 60-year average.

Average high55°

Average low39°

Average precipitation0.16 in

Chance of precipitation42%

Record high74° (2012)

Record low28° (1971)

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, CA 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, CA 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.