Monthly outlook for Prosper, OR: average high 59.3°, average low 48.6°. That is 1.9° below the climate normal for October. Precipitation is expected on 6 days (about 0.9 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 11 October (63.6°), the coolest 10 October (41°).
59.3°/48.6°
Average high / low
−1.9°
Below normal
6 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
59.9°
63.6°
-2°
20 October – 29 October
58.4°
60.6°
-1.2°
30 October – 8 November
at normal
58.1°
—
October records over 66 years
94.1°10 October 1991All-time high
32.5°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Chrome (8 mi).
Sun, 1164° / 44°0
64 °
Prosper, Sunday, 11 October
Clear. High 64°, low 44°.
Pressure29.85 inHg
Wind13.4 mph N
Humidity67%
Visibility6.2 mi
Dew point46°
Mon, 1260° / 46°0
60 °
Prosper, Monday, 12 October
Clear. High 60°, low 46°.
Pressure30.03 inHg
Wind9.5 mph N
Humidity67%
Visibility6.2 mi
Dew point46°
Tue, 1360° / 44°0
60 °
Prosper, Tuesday, 13 October
Clear. High 60°, low 44°.
Pressure30.12 inHg
Wind7.1 mph N
Humidity61%
Visibility6.2 mi
Dew point45°
Wed, 1460° / 49°0
60 °
Prosper, Wednesday, 14 October
Clear. High 60°, low 49°.
Pressure30.15 inHg
Wind12.5 mph N
Humidity64%
Visibility—
Dew point46°
Thu, 1557° / 49°0
57 °
Prosper, Thursday, 15 October
Partly cloudy. High 57°, low 49°.
Pressure30.18 inHg
Wind10.4 mph N
Humidity82%
Visibility—
Dew point50°
Fri, 1660° / 50°0
60 °
Prosper, Friday, 16 October
Clear. High 60°, low 50°.
Pressure30.18 inHg
Wind10.5 mph N
Humidity62%
Visibility—
Dew point45°
Sat, 1760° / 49°0
60 °
Prosper, Saturday, 17 October
Partly cloudy. High 60°, low 49°.
Pressure30.09 inHg
Wind9.5 mph N
Humidity63%
Visibility—
Dew point45°
Sun, 1860° / 49°0
60 °
Prosper, Sunday, 18 October
Overcast. High 60°, low 49°.
Pressure30.15 inHg
Wind10.1 mph N
Humidity72%
Visibility—
Dew point49°
Mon, 1958° / 49°0
58 °
Prosper, Monday, 19 October
Overcast. High 58°, low 49°.
Pressure30.09 inHg
Wind7.4 mph NW
Humidity78%
Visibility—
Dew point49°
Tue, 2057° / 50°0.13
57 °
Prosper, Tuesday, 20 October
Light rain. High 57°, low 50°.
Pressure30.03 inHg
Wind13.4 mph SW
Humidity76%
Visibility—
Dew point49°
Wed, 2156° / 49°0.06
56 °
Prosper, Wednesday, 21 October
Light rain. High 56°, low 49°.
Pressure30.12 inHg
Wind14.9 mph S
Humidity72%
Visibility—
Dew point47°
Thu, 2263° / 57°0.07
63 °
Prosper, Thursday, 22 October
Light rain. High 63°, low 57°.
Pressure30.09 inHg
Wind23.2 mph S
Humidity74%
Visibility—
Dew point54°
Fri, 2358° / 50°0.12
58 °
Prosper, Friday, 23 October
Light rain. High 58°, low 50°.
Pressure30.30 inHg
Wind16.9 mph SW
Humidity77%
Visibility—
Dew point50°
Sat, 2461° / 50°0.04
61 °
Prosper, Saturday, 24 October
Light rain. High 61°, low 50°.
Pressure30.12 inHg
Wind16.2 mph SW
Humidity64%
Visibility—
Dew point47°
Sun, 2555° / 51°0.5
55 °
Prosper, Sunday, 25 October
Rain. High 55°, low 51°.
Pressure29.91 inHg
Wind16.7 mph W
Humidity68%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2660° / 48°0.19
60 °
Prosper, Monday, 26 October
Climate normal for this date — 60-year average.
Average high60°
Average low48°
Average precipitation0.19 in
Chance of precipitation47%
Record high82° (2003)
Record low35° (2020)
Tue, 2760° / 47°0.18
60 °
Prosper, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high60°
Average low47°
Average precipitation0.18 in
Chance of precipitation43%
Record high76° (1993)
Record low36° (2023)
Wed, 2859° / 47°0.22
59 °
Prosper, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.22 in
Chance of precipitation50%
Record high70° (1993)
Record low34° (1971)
Thu, 2959° / 47°0.15
59 °
Prosper, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.15 in
Chance of precipitation42%
Record high71° (1993)
Record low35° (1971)
Fri, 3059° / 46°0.19
59 °
Prosper, Friday, 30 October
Climate normal for this date — 60-year average.
Average high59°
Average low46°
Average precipitation0.19 in
Chance of precipitation37%
Record high71° (2023)
Record low36° (1991)
Sat, 3159° / 47°0.15
59 °
Prosper, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.15 in
Chance of precipitation47%
Record high75° (1966)
Record low33° (2019)
Sun, 0159° / 47°0.21
59 °
Prosper, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.21 in
Chance of precipitation43%
Record high73° (1962)
Record low36° (2003)
Mon, 0259° / 47°0.19
59 °
Prosper, Monday, 2 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.19 in
Chance of precipitation45%
Record high71° (2010)
Record low37° (2019)
Tue, 0359° / 47°0.18
59 °
Prosper, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.18 in
Chance of precipitation43%
Record high69° (1976)
Record low33° (2022)
Wed, 0458° / 47°0.24
58 °
Prosper, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.24 in
Chance of precipitation55%
Record high68° (1976)
Record low34° (2017)
Thu, 0557° / 47°0.28
57 °
Prosper, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.28 in
Chance of precipitation55%
Record high68° (2012)
Record low36° (1971)
Fri, 0657° / 47°0.25
57 °
Prosper, Friday, 6 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.25 in
Chance of precipitation65%
Record high68° (1978)
Record low37° (2017)
Sat, 0757° / 46°0.24
57 °
Prosper, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high57°
Average low46°
Average precipitation0.24 in
Chance of precipitation60%
Record high67° (2019)
Record low35° (2019)
Sun, 0856° / 44°0.24
56 °
Prosper, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.24 in
Chance of precipitation53%
Record high69° (2025)
Record low33° (2022)
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 Prosper, OR 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 Prosper, OR 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.