Monthly outlook for River Raisin, MI: average high 56.8°, average low 40.3°. That is 1° above the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 25 October (70.2°), the coolest 29 October (29.3°).
56.8°/40.3°
Average high / low
+1°
Above normal
3 / 5
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
61.3°
56°
+3°
29 October – 7 November
49.1°
52.4°
-1.8°
8 November – 17 November
at normal
46.8°
—
October records over 66 years
85.6°3 October 2025All-time high
25.3°31 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Chelsea (14 mi).
Tue, 2067° / 37°0
67 °
River Raisin, Tuesday, 20 October
Clear. High 67°, low 37°.
Pressure30.42 inHg
Wind4.5 mph E
Humidity59%
Visibility6.2 mi
Dew point46°
Wed, 2165° / 38°0
65 °
River Raisin, Wednesday, 21 October
Clear. High 65°, low 38°.
Pressure30.33 inHg
Wind1 mph S
Humidity71%
Visibility6.2 mi
Dew point51°
Thu, 2260° / 45°0
60 °
River Raisin, Thursday, 22 October
Clear. High 60°, low 45°.
Pressure30.33 inHg
Wind9.1 mph N
Humidity74%
Visibility6.2 mi
Dew point46°
Fri, 2356° / 39°0
56 °
River Raisin, Friday, 23 October
Clear. High 56°, low 39°.
Pressure30.42 inHg
Wind4.9 mph SE
Humidity57%
Visibility—
Dew point38°
Sat, 2458° / 37°0
58 °
River Raisin, Saturday, 24 October
Clear. High 58°, low 37°.
Pressure30.47 inHg
Wind7.2 mph SE
Humidity51%
Visibility—
Dew point36°
Sun, 2570° / 45°0
70 °
River Raisin, Sunday, 25 October
Overcast. High 70°, low 45°.
Pressure30.27 inHg
Wind13.8 mph SW
Humidity39%
Visibility—
Dew point41°
Mon, 2665° / 46°0
65 °
River Raisin, Monday, 26 October
Partly cloudy. High 65°, low 46°.
Pressure30.27 inHg
Wind7 mph NW
Humidity19%
Visibility—
Dew point20°
Tue, 2765° / 57°0.01
65 °
River Raisin, Tuesday, 27 October
Light rain. High 65°, low 57°.
Pressure29.91 inHg
Wind16.9 mph SW
Humidity47%
Visibility—
Dew point43°
Wed, 2843° / 32°0.14
43 °
River Raisin, Wednesday, 28 October
Light rain. High 43°, low 32°.
Pressure30.09 inHg
Wind18.5 mph NW
Humidity37%
Visibility—
Dew point17°
Thu, 2948° / 29°0
48 °
River Raisin, Thursday, 29 October
Clear. High 48°, low 29°.
Pressure30.15 inHg
Wind14.5 mph W
Humidity30%
Visibility—
Dew point15°
Fri, 3051° / 33°0
51 °
River Raisin, Friday, 30 October
Overcast. High 51°, low 33°.
Pressure30.00 inHg
Wind14.8 mph SW
Humidity27%
Visibility—
Dew point16°
Sat, 3154° / 44°0
54 °
River Raisin, Saturday, 31 October
Overcast. High 54°, low 44°.
Pressure30.12 inHg
Wind9.6 mph S
Humidity30%
Visibility—
Dew point22°
Sun, 0147° / 45°0.08
47 °
River Raisin, Sunday, 1 November
Light rain. High 47°, low 45°.
Pressure29.94 inHg
Wind8.5 mph SE
Humidity96%
Visibility—
Dew point45°
Mon, 0247° / 42°0.61
47 °
River Raisin, Monday, 2 November
Rain. High 47°, low 42°.
Pressure29.85 inHg
Wind18.6 mph N
Humidity90%
Visibility—
Dew point43°
Tue, 0348° / 38°0
48 °
River Raisin, Tuesday, 3 November
Overcast. High 48°, low 38°.
Pressure29.94 inHg
Wind12.4 mph N
Humidity72%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0451° / 39°0.06
51 °
River Raisin, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.06 in
Chance of precipitation30%
Record high72° (2015)
Record low18° (1991)
Thu, 0552° / 39°0.07
52 °
River Raisin, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.07 in
Chance of precipitation27%
Record high71° (1978)
Record low19° (1991)
Fri, 0651° / 37°0.06
51 °
River Raisin, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.06 in
Chance of precipitation27%
Record high72° (1975)
Record low25° (1967)
Sat, 0749° / 37°0.09
49 °
River Raisin, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high67° (2020)
Record low22° (1991)
Sun, 0850° / 37°0.03
50 °
River Raisin, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.03 in
Chance of precipitation18%
Record high68° (2020)
Record low18° (1991)
Mon, 0950° / 37°0.11
50 °
River Raisin, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation37%
Record high71° (2020)
Record low20° (1991)
Tue, 1049° / 37°0.12
49 °
River Raisin, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.12 in
Chance of precipitation33%
Record high70° (2020)
Record low19° (2017)
Wed, 1147° / 35°0.1
47 °
River Raisin, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.1 in
Chance of precipitation32%
Record high67° (1964)
Record low21° (2017)
Thu, 1245° / 33°0.06
45 °
River Raisin, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.06 in
Chance of precipitation20%
Record high67° (1964)
Record low10° (2019)
Fri, 1345° / 33°0.05
45 °
River Raisin, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.05 in
Chance of precipitation18%
Record high64° (1989)
Record low5° (2019)
Sat, 1446° / 33°0.09
46 °
River Raisin, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.09 in
Chance of precipitation32%
Record high62° (1973)
Record low12° (1986)
Sun, 1546° / 34°0.13
46 °
River Raisin, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.13 in
Chance of precipitation37%
Record high66° (2025)
Record low20° (1967)
Mon, 1645° / 32°0.07
45 °
River Raisin, Monday, 16 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.07 in
Chance of precipitation25%
Record high61° (1988)
Record low14° (2019)
Tue, 1745° / 33°0.07
45 °
River Raisin, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.07 in
Chance of precipitation30%
Record high64° (1971)
Record low16° (2019)
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 River Raisin, 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 River Raisin, 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.