Monthly outlook for Grasmere, ID: average high 57.3°, average low 38.6°. That is 0.5° below the climate normal for October. Precipitation is expected on 3 days (about 0.1 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 18 October (72.4°), the coolest 21 October (30.8°).
57.3°/38.6°
Average high / low
−0.5°
Below normal
3 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
57.4°
59.7°
-1.3°
22 October – 31 October
57.2°
54.2°
+1.7°
1 November – 10 November
at normal
49.7°
—
October records over 66 years
86.4°2 October 2010All-time high
5.7°30 October 1991All-time low
Tue, 1350° / 34°0.04
50 °
Grasmere, Tuesday, 13 October
Snow. High 50°, low 34°.
Pressure30.09 inHg
Wind7.3 mph NW
Humidity58%
Visibility6.2 mi
Dew point24°
Wed, 1456° / 33°0
56 °
Grasmere, Wednesday, 14 October
Clear. High 56°, low 33°.
Pressure30.18 inHg
Wind8.2 mph NW
Humidity45%
Visibility6.2 mi
Dew point25°
Thu, 1559° / 41°0
59 °
Grasmere, Thursday, 15 October
Clear. High 59°, low 41°.
Pressure30.45 inHg
Wind6.3 mph E
Humidity42%
Visibility6.2 mi
Dew point33°
Fri, 1664° / 43°0
64 °
Grasmere, Friday, 16 October
Clear. High 64°, low 43°.
Pressure30.36 inHg
Wind6.8 mph E
Humidity36%
Visibility—
Dew point29°
Sat, 1771° / 44°0
71 °
Grasmere, Saturday, 17 October
Clear. High 71°, low 44°.
Pressure30.03 inHg
Wind16.3 mph SW
Humidity27%
Visibility—
Dew point28°
Sun, 1872° / 56°0
72 °
Grasmere, Sunday, 18 October
Overcast. High 72°, low 56°.
Pressure29.97 inHg
Wind14.8 mph SW
Humidity16%
Visibility—
Dew point19°
Mon, 1965° / 39°0
65 °
Grasmere, Monday, 19 October
Overcast. High 65°, low 39°.
Pressure29.80 inHg
Wind22.7 mph NW
Humidity14%
Visibility—
Dew point13°
Tue, 2044° / 36°0.04
44 °
Grasmere, Tuesday, 20 October
Snow. High 44°, low 36°.
Pressure30.03 inHg
Wind21.9 mph W
Humidity46%
Visibility—
Dew point23°
Wed, 2151° / 31°0
51 °
Grasmere, Wednesday, 21 October
Mostly clear. High 51°, low 31°.
Pressure30.24 inHg
Wind16 mph W
Humidity33%
Visibility—
Dew point15°
Thu, 2263° / 39°0
63 °
Grasmere, Thursday, 22 October
Clear. High 63°, low 39°.
Pressure30.24 inHg
Wind13 mph E
Humidity19%
Visibility—
Dew point12°
Fri, 2371° / 44°0
71 °
Grasmere, Friday, 23 October
Clear. High 71°, low 44°.
Pressure29.88 inHg
Wind11.3 mph SW
Humidity16%
Visibility—
Dew point15°
Sat, 2454° / 39°0
54 °
Grasmere, Saturday, 24 October
Partly cloudy. High 54°, low 39°.
Pressure29.83 inHg
Wind15.5 mph N
Humidity43%
Visibility—
Dew point29°
Sun, 2551° / 32°0
51 °
Grasmere, Sunday, 25 October
Clear. High 51°, low 32°.
Pressure29.97 inHg
Wind8.5 mph NE
Humidity22%
Visibility—
Dew point8°
Mon, 2653° / 33°0
53 °
Grasmere, Monday, 26 October
Clear. High 53°, low 33°.
Pressure30.09 inHg
Wind11 mph NE
Humidity27%
Visibility—
Dew point13°
Tue, 2752° / 36°0
52 °
Grasmere, Tuesday, 27 October
Clear. High 52°, low 36°.
Pressure29.91 inHg
Wind4.7 mph E
Humidity28%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 1047° / 31°0.03
47 °
Grasmere, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.03 in
Chance of precipitation22%
Record high62° (2016)
Record low3° (1986)
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.