Monthly outlook for Larson Mill, WA: average high 57.2°, average low 44.2°. That is 0° above the climate normal for October. Precipitation is expected on 5 days (about 0.7 inches), against a normal of 8 days and 3.3 inches. The warmest day looks like 8 October (63.4°), the coolest 12 October (38.6°).
57.2°/44.2°
Average high / low
+0°
Above normal
5 / 8
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
58°
58°
+0°
18 October – 27 October
55.7°
54.9°
+0.5°
28 October – 6 November
at normal
51.6°
—
October records over 66 years
81.1°1 October 1987All-time high
21.6°31 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Bellingham (2 mi).
Fri, 0959° / 47°0.26
59 °
Larson Mill, Friday, 9 October
Rain. High 59°, low 47°.
Pressure29.80 inHg
Wind8.6 mph SW
Humidity60%
Visibility6.2 mi
Dew point44°
Sat, 1057° / 45°0.13
57 °
Larson Mill, Saturday, 10 October
Light rain. High 57°, low 45°.
Pressure29.85 inHg
Wind7.1 mph N
Humidity75%
Visibility6.2 mi
Dew point46°
Sun, 1157° / 43°0
57 °
Larson Mill, Sunday, 11 October
Clear. High 57°, low 43°.
Pressure30.00 inHg
Wind14.2 mph NE
Humidity46%
Visibility6.2 mi
Dew point35°
Mon, 1258° / 39°0
58 °
Larson Mill, Monday, 12 October
Clear. High 58°, low 39°.
Pressure30.03 inHg
Wind4.6 mph NE
Humidity56%
Visibility—
Dew point36°
Tue, 1358° / 41°0.09
58 °
Larson Mill, Tuesday, 13 October
Light rain. High 58°, low 41°.
Pressure30.00 inHg
Wind9.9 mph S
Humidity63%
Visibility—
Dew point41°
Wed, 1452° / 44°0.17
52 °
Larson Mill, Wednesday, 14 October
Light rain. High 52°, low 44°.
Pressure30.03 inHg
Wind5.6 mph SW
Humidity83%
Visibility—
Dew point45°
Thu, 1557° / 40°0
57 °
Larson Mill, Thursday, 15 October
Clear. High 57°, low 40°.
Pressure30.45 inHg
Wind4.8 mph NW
Humidity59%
Visibility—
Dew point37°
Fri, 1659° / 44°0
59 °
Larson Mill, Friday, 16 October
Partly cloudy. High 59°, low 44°.
Pressure30.30 inHg
Wind3.3 mph SE
Humidity51%
Visibility—
Dew point36°
Sat, 1759° / 45°0
59 °
Larson Mill, Saturday, 17 October
Overcast. High 59°, low 45°.
Pressure30.21 inHg
Wind3.9 mph W
Humidity57%
Visibility—
Dew point40°
Sun, 1858° / 48°0
58 °
Larson Mill, Sunday, 18 October
Light rain. High 58°, low 48°.
Pressure30.09 inHg
Wind4 mph S
Humidity57%
Visibility—
Dew point40°
Mon, 1958° / 48°0
58 °
Larson Mill, Monday, 19 October
Overcast. High 58°, low 48°.
Pressure30.33 inHg
Wind4.8 mph S
Humidity81%
Visibility—
Dew point49°
Tue, 2057° / 46°0
57 °
Larson Mill, Tuesday, 20 October
Overcast. High 57°, low 46°.
Pressure30.42 inHg
Wind4.3 mph SW
Humidity70%
Visibility—
Dew point44°
Wed, 2157° / 44°0
57 °
Larson Mill, Wednesday, 21 October
Mostly clear. High 57°, low 44°.
Pressure30.50 inHg
Wind5.6 mph N
Humidity69%
Visibility—
Dew point43°
Thu, 2253° / 45°0.06
53 °
Larson Mill, Thursday, 22 October
Light rain. High 53°, low 45°.
Pressure30.12 inHg
Wind9.4 mph W
Humidity70%
Visibility—
Dew point42°
Fri, 2351° / 39°0
51 °
Larson Mill, Friday, 23 October
Clear. High 51°, low 39°.
Pressure30.18 inHg
Wind6.5 mph SW
Humidity70%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2454° / 44°0.2
54 °
Larson Mill, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high54°
Average low44°
Average precipitation0.2 in
Chance of precipitation62%
Record high67° (1965)
Record low36° (1997)
Sun, 2554° / 44°0.24
54 °
Larson Mill, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high54°
Average low44°
Average precipitation0.24 in
Chance of precipitation62%
Record high65° (1965)
Record low31° (2020)
Mon, 2653° / 43°0.28
53 °
Larson Mill, Monday, 26 October
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.28 in
Chance of precipitation52%
Record high67° (1965)
Record low32° (1970)
Tue, 2753° / 43°0.23
53 °
Larson Mill, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.23 in
Chance of precipitation47%
Record high64° (1968)
Record low30° (1971)
Wed, 2853° / 44°0.31
53 °
Larson Mill, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low44°
Average precipitation0.31 in
Chance of precipitation62%
Record high67° (1962)
Record low30° (1971)
Thu, 2952° / 42°0.2
52 °
Larson Mill, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.2 in
Chance of precipitation53%
Record high67° (1962)
Record low29° (1991)
Fri, 3052° / 42°0.27
52 °
Larson Mill, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.27 in
Chance of precipitation57%
Record high61° (1987)
Record low31° (1972)
Sat, 3151° / 42°0.33
51 °
Larson Mill, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.33 in
Chance of precipitation67%
Record high61° (1964)
Record low22° (1984)
Sun, 0152° / 41°0.25
52 °
Larson Mill, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.25 in
Chance of precipitation50%
Record high65° (1969)
Record low31° (1984)
Mon, 0252° / 41°0.27
52 °
Larson Mill, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.27 in
Chance of precipitation58%
Record high65° (1962)
Record low31° (1961)
Tue, 0351° / 42°0.33
51 °
Larson Mill, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.33 in
Chance of precipitation63%
Record high64° (2010)
Record low29° (2017)
Wed, 0452° / 42°0.38
52 °
Larson Mill, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.38 in
Chance of precipitation62%
Record high65° (1980)
Record low30° (2017)
Thu, 0551° / 41°0.22
51 °
Larson Mill, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.22 in
Chance of precipitation65%
Record high64° (1980)
Record low28° (1971)
Fri, 0650° / 41°0.35
50 °
Larson Mill, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.35 in
Chance of precipitation62%
Record high59° (2014)
Record low28° (2003)
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 Larson Mill, WA 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 Larson Mill, WA 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.