Monthly outlook for Bloomington, CA: average high 81.2°, average low 64.1°. That is 2.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 17 October (87.5°), the coolest 14 October (53°).
81.2°/64.1°
Average high / low
+2.3°
Above normal
2 / 2
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
78.8°
78.2°
+0.3°
24 October – 2 November
85.4°
74.5°
+6°
3 November – 12 November
at normal
71.4°
—
October records over 66 years
104.7°2 October 2024All-time high
30.4°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Rialto (4 mi).
Thu, 1584° / 58°0
84 °
Bloomington, Thursday, 15 October
Clear. High 84°, low 58°.
Pressure30.03 inHg
Wind15.6 mph N
Humidity22%
Visibility6.2 mi
Dew point38°
Fri, 1686° / 68°0
86 °
Bloomington, Friday, 16 October
Mostly clear. High 86°, low 68°.
Pressure30.03 inHg
Wind18.4 mph N
Humidity22%
Visibility6.2 mi
Dew point40°
Sat, 1787° / 67°0
87 °
Bloomington, Saturday, 17 October
Overcast. High 87°, low 67°.
Pressure30.00 inHg
Wind2.3 mph SW
Humidity13%
Visibility6.2 mi
Dew point31°
Sun, 1883° / 66°0
83 °
Bloomington, Sunday, 18 October
Overcast. High 83°, low 66°.
Pressure29.97 inHg
Wind0.9 mph E
Humidity20%
Visibility6.2 mi
Dew point36°
Mon, 1983° / 65°0
83 °
Bloomington, Monday, 19 October
Clear. High 83°, low 65°.
Pressure30.00 inHg
Wind7 mph W
Humidity25%
Visibility—
Dew point38°
Tue, 2077° / 63°0
77 °
Bloomington, Tuesday, 20 October
Clear. High 77°, low 63°.
Pressure29.85 inHg
Wind11.3 mph W
Humidity46%
Visibility—
Dew point48°
Wed, 2170° / 59°0.3
70 °
Bloomington, Wednesday, 21 October
Rain. High 70°, low 59°.
Pressure29.88 inHg
Wind11.6 mph W
Humidity52%
Visibility—
Dew point47°
Thu, 2267° / 57°0.05
67 °
Bloomington, Thursday, 22 October
Light rain. High 67°, low 57°.
Pressure29.94 inHg
Wind9.6 mph W
Humidity53%
Visibility—
Dew point45°
Fri, 2372° / 59°0
72 °
Bloomington, Friday, 23 October
Partly cloudy. High 72°, low 59°.
Pressure30.06 inHg
Wind6.2 mph SW
Humidity52%
Visibility—
Dew point47°
Sat, 2482° / 64°0
82 °
Bloomington, Saturday, 24 October
Clear. High 82°, low 64°.
Pressure30.12 inHg
Wind18.9 mph N
Humidity11%
Visibility—
Dew point18°
Sun, 2586° / 68°0
86 °
Bloomington, Sunday, 25 October
Clear. High 86°, low 68°.
Pressure30.09 inHg
Wind14.8 mph N
Humidity8%
Visibility—
Dew point13°
Mon, 2687° / 69°0
87 °
Bloomington, Monday, 26 October
Clear. High 87°, low 69°.
Pressure29.97 inHg
Wind10.8 mph N
Humidity11%
Visibility—
Dew point21°
Tue, 2785° / 69°0
85 °
Bloomington, Tuesday, 27 October
Clear. High 85°, low 69°.
Pressure29.94 inHg
Wind7 mph W
Humidity12%
Visibility—
Dew point21°
Wed, 2885° / 70°0
85 °
Bloomington, Wednesday, 28 October
Clear. High 85°, low 70°.
Pressure29.88 inHg
Wind6.7 mph W
Humidity14%
Visibility—
Dew point25°
Thu, 2987° / 70°0
87 °
Bloomington, Thursday, 29 October
Mostly clear. High 87°, low 70°.
Pressure29.88 inHg
Wind7.7 mph W
Humidity15%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3073° / 49°0.05
73 °
Bloomington, Friday, 30 October
Climate normal for this date — 60-year average.
Average high73°
Average low49°
Average precipitation0.05 in
Chance of precipitation18%
Record high90° (2025)
Record low30° (1971)
Sat, 3173° / 50°0.02
73 °
Bloomington, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high73°
Average low50°
Average precipitation0.02 in
Chance of precipitation8%
Record high89° (2020)
Record low36° (1991)
Sun, 0174° / 49°0.04
74 °
Bloomington, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high74°
Average low49°
Average precipitation0.04 in
Chance of precipitation13%
Record high89° (2020)
Record low35° (1971)
Mon, 0274° / 49°0.03
74 °
Bloomington, Monday, 2 November
Climate normal for this date — 60-year average.
Average high74°
Average low49°
Average precipitation0.03 in
Chance of precipitation18%
Record high89° (2009)
Record low37° (1971)
Tue, 0375° / 48°0.01
75 °
Bloomington, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high75°
Average low48°
Average precipitation0.01 in
Chance of precipitation8%
Record high92° (2010)
Record low37° (1990)
Wed, 0474° / 49°0.03
74 °
Bloomington, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high74°
Average low49°
Average precipitation0.03 in
Chance of precipitation12%
Record high92° (2020)
Record low34° (1994)
Thu, 0573° / 49°0.01
73 °
Bloomington, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high73°
Average low49°
Average precipitation0.01 in
Chance of precipitation7%
Record high90° (2020)
Record low37° (2015)
Fri, 0672° / 49°0.02
72 °
Bloomington, Friday, 6 November
Climate normal for this date — 60-year average.
Average high72°
Average low49°
Average precipitation0.02 in
Chance of precipitation10%
Record high87° (1991)
Record low39° (2015)
Sat, 0771° / 48°0.07
71 °
Bloomington, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high71°
Average low48°
Average precipitation0.07 in
Chance of precipitation8%
Record high90° (2006)
Record low36° (2011)
Sun, 0870° / 49°0.09
70 °
Bloomington, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high70°
Average low49°
Average precipitation0.09 in
Chance of precipitation23%
Record high89° (2016)
Record low35° (2011)
Mon, 0970° / 48°0.06
70 °
Bloomington, Monday, 9 November
Climate normal for this date — 60-year average.
Average high70°
Average low48°
Average precipitation0.06 in
Chance of precipitation18%
Record high89° (2016)
Record low36° (2011)
Tue, 1070° / 47°0.04
70 °
Bloomington, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high70°
Average low47°
Average precipitation0.04 in
Chance of precipitation15%
Record high90° (2025)
Record low37° (1966)
Wed, 1169° / 47°0.07
69 °
Bloomington, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high69°
Average low47°
Average precipitation0.07 in
Chance of precipitation15%
Record high85° (2021)
Record low35° (2012)
Thu, 1270° / 47°0.04
70 °
Bloomington, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high70°
Average low47°
Average precipitation0.04 in
Chance of precipitation13%
Record high87° (2021)
Record low32° (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 Bloomington, 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 Bloomington, 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.