Monthly outlook for Grasmere, ID: average high 55.9°, average low 38.7°. That is 2° below the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 9 October (76.2°), the coolest 11 October (30.5°).
55.9°/38.7°
Average high / low
−2°
Below normal
2 / 3
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
58.1°
60.4°
-1.3°
19 October – 28 October
52.3°
56.7°
-2.5°
29 October – 7 November
at normal
50.8°
—
October records over 66 years
86.4°2 October 2010All-time high
5.7°30 October 1991All-time low
Sat, 1055° / 37°0
55 °
Grasmere, Saturday, 10 October
Clear. High 55°, low 37°.
Pressure29.65 inHg
Wind9 mph N
Humidity56%
Visibility6.2 mi
Dew point37°
Sun, 1143° / 30°0.19
43 °
Grasmere, Sunday, 11 October
Snow. High 43°, low 30°.
Pressure29.77 inHg
Wind9.5 mph N
Humidity79%
Visibility6.2 mi
Dew point29°
Mon, 1240° / 35°0
40 °
Grasmere, Monday, 12 October
Overcast. High 40°, low 35°.
Pressure30.03 inHg
Wind6.9 mph NE
Humidity81%
Visibility6.2 mi
Dew point30°
Tue, 1350° / 35°0
50 °
Grasmere, Tuesday, 13 October
Partly cloudy. High 50°, low 35°.
Pressure30.03 inHg
Wind13.5 mph N
Humidity59%
Visibility6.2 mi
Dew point31°
Wed, 1455° / 38°0
55 °
Grasmere, Wednesday, 14 October
Clear. High 55°, low 38°.
Pressure30.15 inHg
Wind10.4 mph W
Humidity45%
Visibility—
Dew point29°
Thu, 1561° / 38°0
61 °
Grasmere, Thursday, 15 October
Clear. High 61°, low 38°.
Pressure30.30 inHg
Wind13.2 mph N
Humidity40%
Visibility—
Dew point30°
Fri, 1660° / 43°0
60 °
Grasmere, Friday, 16 October
Clear. High 60°, low 43°.
Pressure30.36 inHg
Wind9.8 mph E
Humidity37%
Visibility—
Dew point28°
Sat, 1771° / 45°0
71 °
Grasmere, Saturday, 17 October
Overcast. High 71°, low 45°.
Pressure30.09 inHg
Wind8.6 mph SW
Humidity25%
Visibility—
Dew point25°
Sun, 1871° / 52°0
71 °
Grasmere, Sunday, 18 October
Overcast. High 71°, low 52°.
Pressure29.88 inHg
Wind18 mph SW
Humidity16%
Visibility—
Dew point18°
Mon, 1957° / 41°0
57 °
Grasmere, Monday, 19 October
Clear. High 57°, low 41°.
Pressure30.00 inHg
Wind12.7 mph W
Humidity35%
Visibility—
Dew point23°
Tue, 2050° / 41°0
50 °
Grasmere, Tuesday, 20 October
Partly cloudy. High 50°, low 41°.
Pressure30.00 inHg
Wind22.7 mph NW
Humidity35%
Visibility—
Dew point21°
Wed, 2162° / 35°0
62 °
Grasmere, Wednesday, 21 October
Overcast. High 62°, low 35°.
Pressure30.12 inHg
Wind16.7 mph SW
Humidity21%
Visibility—
Dew point12°
Thu, 2247° / 38°0.17
47 °
Grasmere, Thursday, 22 October
Snow. High 47°, low 38°.
Pressure30.09 inHg
Wind19.6 mph NW
Humidity47%
Visibility—
Dew point24°
Fri, 2346° / 32°0
46 °
Grasmere, Friday, 23 October
Clear. High 46°, low 32°.
Pressure30.42 inHg
Wind6 mph E
Humidity41%
Visibility—
Dew point18°
Sat, 2452° / 34°0
52 °
Grasmere, Saturday, 24 October
Overcast. High 52°, low 34°.
Pressure30.39 inHg
Wind6.1 mph NE
Humidity27%
Visibility—
Dew point13°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2556° / 37°0.06
56 °
Grasmere, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high56°
Average low37°
Average precipitation0.06 in
Chance of precipitation23%
Record high72° (1977)
Record low19° (2020)
Mon, 2655° / 37°0.07
55 °
Grasmere, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low37°
Average precipitation0.07 in
Chance of precipitation22%
Record high72° (1999)
Record low19° (2020)
Tue, 2755° / 35°0.02
55 °
Grasmere, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low35°
Average precipitation0.02 in
Chance of precipitation13%
Record high74° (1990)
Record low13° (1970)
Wed, 2854° / 35°0.06
54 °
Grasmere, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high54°
Average low35°
Average precipitation0.06 in
Chance of precipitation23%
Record high74° (1968)
Record low17° (1971)
Thu, 2951° / 35°0.06
51 °
Grasmere, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.06 in
Chance of precipitation33%
Record high69° (1968)
Record low13° (1971)
Fri, 3051° / 33°0.02
51 °
Grasmere, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.02 in
Chance of precipitation18%
Record high69° (2008)
Record low6° (1991)
Sat, 3151° / 34°0.02
51 °
Grasmere, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.02 in
Chance of precipitation13%
Record high71° (1988)
Record low12° (1972)
Sun, 0151° / 34°0.03
51 °
Grasmere, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.03 in
Chance of precipitation18%
Record high70° (1965)
Record low12° (2002)
Mon, 0251° / 33°0.05
51 °
Grasmere, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.05 in
Chance of precipitation20%
Record high67° (2020)
Record low14° (2002)
Tue, 0351° / 33°0.03
51 °
Grasmere, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.03 in
Chance of precipitation20%
Record high70° (2020)
Record low11° (1991)
Wed, 0451° / 34°0.03
51 °
Grasmere, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.03 in
Chance of precipitation22%
Record high69° (1980)
Record low19° (2002)
Thu, 0551° / 34°0.03
51 °
Grasmere, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.03 in
Chance of precipitation20%
Record high72° (1980)
Record low20° (1961)
Fri, 0651° / 34°0.04
51 °
Grasmere, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.04 in
Chance of precipitation23%
Record high70° (1999)
Record low13° (1971)
Sat, 0749° / 34°0.04
49 °
Grasmere, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.04 in
Chance of precipitation30%
Record high69° (1999)
Record low9° (2017)
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 Grasmere, ID 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 Grasmere, ID 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.