Monthly outlook for Grasmere, ID: average high 57.8°, average low 40°. That is 0.4° below the climate normal for October. Precipitation is expected on 0 days (about 0.1 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 17 October (73.2°), the coolest 23 October (32.4°).
57.8°/40°
Average high / low
−0.4°
Below normal
0 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
58.8°
59.9°
-0.6°
21 October – 30 October
56.2°
55°
+0.7°
31 October – 9 November
at normal
50.2°
—
October records over 66 years
86.4°2 October 2010All-time high
5.7°30 October 1991All-time low
Mon, 1241° / 35°0.04
41 °
Grasmere, Monday, 12 October
Snow. High 41°, low 35°.
Pressure30.00 inHg
Wind5.3 mph N
Humidity85%
Visibility6.2 mi
Dew point27°
Tue, 1350° / 35°0
50 °
Grasmere, Tuesday, 13 October
Clear. High 50°, low 35°.
Pressure30.09 inHg
Wind7.9 mph NW
Humidity58%
Visibility6.2 mi
Dew point27°
Wed, 1457° / 34°0
57 °
Grasmere, Wednesday, 14 October
Clear. High 57°, low 34°.
Pressure30.18 inHg
Wind7.4 mph NW
Humidity44%
Visibility6.2 mi
Dew point24°
Thu, 1560° / 41°0
60 °
Grasmere, Thursday, 15 October
Clear. High 60°, low 41°.
Pressure30.45 inHg
Wind8.3 mph E
Humidity40%
Visibility6.2 mi
Dew point31°
Fri, 1666° / 45°0
66 °
Grasmere, Friday, 16 October
Clear. High 66°, low 45°.
Pressure30.39 inHg
Wind9.4 mph E
Humidity35%
Visibility—
Dew point29°
Sat, 1773° / 46°0
73 °
Grasmere, Saturday, 17 October
Clear. High 73°, low 46°.
Pressure30.09 inHg
Wind15.4 mph W
Humidity23%
Visibility—
Dew point26°
Sun, 1873° / 54°0
73 °
Grasmere, Sunday, 18 October
Partly cloudy. High 73°, low 54°.
Pressure29.97 inHg
Wind13.5 mph W
Humidity15%
Visibility—
Dew point19°
Mon, 1972° / 54°0
72 °
Grasmere, Monday, 19 October
Partly cloudy. High 72°, low 54°.
Pressure29.85 inHg
Wind26.1 mph SW
Humidity12%
Visibility—
Dew point13°
Tue, 2050° / 36°0
50 °
Grasmere, Tuesday, 20 October
Clear. High 50°, low 36°.
Pressure30.12 inHg
Wind24.9 mph W
Humidity40%
Visibility—
Dew point21°
Wed, 2159° / 37°0
59 °
Grasmere, Wednesday, 21 October
Partly cloudy. High 59°, low 37°.
Pressure29.83 inHg
Wind17 mph SW
Humidity14%
Visibility—
Dew point6°
Thu, 2247° / 37°0.01
47 °
Grasmere, Thursday, 22 October
Light rain. High 47°, low 37°.
Pressure30.12 inHg
Wind16.6 mph W
Humidity50%
Visibility—
Dew point28°
Fri, 2346° / 32°0
46 °
Grasmere, Friday, 23 October
Partly cloudy. High 46°, low 32°.
Pressure30.47 inHg
Wind12.5 mph N
Humidity60%
Visibility—
Dew point28°
Sat, 2455° / 34°0
55 °
Grasmere, Saturday, 24 October
Clear. High 55°, low 34°.
Pressure30.47 inHg
Wind7.1 mph N
Humidity36%
Visibility—
Dew point20°
Sun, 2562° / 40°0
62 °
Grasmere, Sunday, 25 October
Clear. High 62°, low 40°.
Pressure30.27 inHg
Wind8.4 mph SW
Humidity16%
Visibility—
Dew point9°
Mon, 2668° / 44°0
68 °
Grasmere, Monday, 26 October
Mostly clear. High 68°, low 44°.
Pressure30.15 inHg
Wind14 mph W
Humidity12%
Visibility—
Dew point7°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 0848° / 31°0.05
48 °
Grasmere, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.05 in
Chance of precipitation28%
Record high66° (1967)
Record low8° (1994)
Mon, 0947° / 31°0.05
47 °
Grasmere, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.05 in
Chance of precipitation32%
Record high64° (2016)
Record low20° (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 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.