Monthly outlook for Grasmere, ID: average high 57.9°, average low 39.9°. That is 0.7° above 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 19 October (71.5°), the coolest 24 October (28.4°).
57.9°/39.9°
Average high / low
+0.7°
Above normal
0 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
58.3°
58.7°
-0.2°
25 October – 3 November
57.3°
52.5°
+2.7°
4 November – 13 November
at normal
48.5°
—
October records over 66 years
86.4°2 October 2010All-time high
5.7°30 October 1991All-time low
Fri, 1665° / 40°0
65 °
Grasmere, Friday, 16 October
Clear. High 65°, low 40°.
Pressure30.45 inHg
Wind3.2 mph E
Humidity33%
Visibility6.2 mi
Dew point27°
Sat, 1771° / 46°0
71 °
Grasmere, Saturday, 17 October
Partly cloudy. High 71°, low 46°.
Pressure30.18 inHg
Wind15.6 mph SW
Humidity27%
Visibility6.2 mi
Dew point29°
Sun, 1869° / 46°0
69 °
Grasmere, Sunday, 18 October
Overcast. High 69°, low 46°.
Pressure30.03 inHg
Wind11.5 mph SW
Humidity28%
Visibility6.2 mi
Dew point28°
Mon, 1971° / 48°0
71 °
Grasmere, Monday, 19 October
Clear. High 71°, low 48°.
Pressure29.88 inHg
Wind12.2 mph SW
Humidity24%
Visibility—
Dew point27°
Tue, 2059° / 47°0.01
59 °
Grasmere, Tuesday, 20 October
Light rain. High 59°, low 47°.
Pressure29.83 inHg
Wind11.6 mph N
Humidity39%
Visibility—
Dew point33°
Wed, 2152° / 41°0.03
52 °
Grasmere, Wednesday, 21 October
Light rain. High 52°, low 41°.
Pressure29.85 inHg
Wind8.7 mph N
Humidity59%
Visibility—
Dew point33°
Thu, 2250° / 40°0
50 °
Grasmere, Thursday, 22 October
Overcast. High 50°, low 40°.
Pressure29.91 inHg
Wind23 mph W
Humidity36%
Visibility—
Dew point23°
Fri, 2342° / 30°0.02
42 °
Grasmere, Friday, 23 October
Light rain. High 42°, low 30°.
Pressure30.33 inHg
Wind19.1 mph W
Humidity49%
Visibility—
Dew point19°
Sat, 2444° / 28°0
44 °
Grasmere, Saturday, 24 October
Clear. High 44°, low 28°.
Pressure30.56 inHg
Wind12.9 mph N
Humidity35%
Visibility—
Dew point12°
Sun, 2553° / 31°0
53 °
Grasmere, Sunday, 25 October
Overcast. High 53°, low 31°.
Pressure30.53 inHg
Wind9.1 mph SW
Humidity13%
Visibility—
Dew point-4°
Mon, 2656° / 40°0
56 °
Grasmere, Monday, 26 October
Overcast. High 56°, low 40°.
Pressure30.27 inHg
Wind8.9 mph SW
Humidity11%
Visibility—
Dew point-3°
Tue, 2760° / 39°0
60 °
Grasmere, Tuesday, 27 October
Partly cloudy. High 60°, low 39°.
Pressure30.12 inHg
Wind10.5 mph W
Humidity31%
Visibility—
Dew point22°
Wed, 2861° / 45°0
61 °
Grasmere, Wednesday, 28 October
Overcast. High 61°, low 45°.
Pressure29.97 inHg
Wind19.9 mph SW
Humidity34%
Visibility—
Dew point29°
Thu, 2967° / 45°0
67 °
Grasmere, Thursday, 29 October
Overcast. High 67°, low 45°.
Pressure29.80 inHg
Wind21.5 mph W
Humidity23%
Visibility—
Dew point22°
Fri, 3047° / 38°0
47 °
Grasmere, Friday, 30 October
Overcast. High 47°, low 38°.
Pressure30.03 inHg
Wind23.7 mph NW
Humidity41%
Visibility—
Dew point20°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Wed, 1147° / 31°0.04
47 °
Grasmere, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.04 in
Chance of precipitation27%
Record high65° (1999)
Record low11° (2022)
Thu, 1247° / 31°0.04
47 °
Grasmere, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.04 in
Chance of precipitation28%
Record high69° (1999)
Record low7° (1982)
Fri, 1347° / 31°0.04
47 °
Grasmere, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.04 in
Chance of precipitation25%
Record high67° (1999)
Record low10° (2022)
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.