Monthly outlook for Meridian, ID: average high 66.3°, average low 45.3°. That is 2° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 17 October (75.3°), the coolest 22 October (36.6°).
66.3°/45.3°
Average high / low
+2°
Above normal
1 / 2
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
65.5°
64.2°
+0.7°
22 October – 31 October
67.5°
58.6°
+4.9°
1 November – 10 November
at normal
53.7°
—
October records over 66 years
92.1°1 October 1997All-time high
16.3°30 October 2019All-time low
Tue, 1357° / 41°0
57 °
Meridian, Tuesday, 13 October
Clear. High 57°, low 41°.
Pressure30.12 inHg
Wind9.5 mph NW
Humidity44%
Visibility6.2 mi
Dew point28°
Wed, 1467° / 40°0
67 °
Meridian, Wednesday, 14 October
Partly cloudy. High 67°, low 40°.
Pressure30.18 inHg
Wind5.8 mph NW
Humidity37%
Visibility6.2 mi
Dew point29°
Thu, 1570° / 45°0
70 °
Meridian, Thursday, 15 October
Clear. High 70°, low 45°.
Pressure30.42 inHg
Wind6.5 mph SE
Humidity36%
Visibility6.2 mi
Dew point34°
Fri, 1673° / 49°0
73 °
Meridian, Friday, 16 October
Clear. High 73°, low 49°.
Pressure30.36 inHg
Wind10.5 mph S
Humidity32%
Visibility—
Dew point31°
Sat, 1775° / 52°0
75 °
Meridian, Saturday, 17 October
Clear. High 75°, low 52°.
Pressure30.03 inHg
Wind7.2 mph S
Humidity29%
Visibility—
Dew point32°
Sun, 1870° / 50°0
70 °
Meridian, Sunday, 18 October
Clear. High 70°, low 50°.
Pressure30.00 inHg
Wind11 mph NW
Humidity38%
Visibility—
Dew point37°
Mon, 1972° / 53°0
72 °
Meridian, Monday, 19 October
Overcast. High 72°, low 53°.
Pressure29.74 inHg
Wind18.1 mph S
Humidity25%
Visibility—
Dew point30°
Tue, 2058° / 48°0.06
58 °
Meridian, Tuesday, 20 October
Light rain. High 58°, low 48°.
Pressure29.85 inHg
Wind12 mph NW
Humidity61%
Visibility—
Dew point39°
Wed, 2159° / 37°0
59 °
Meridian, Wednesday, 21 October
Clear. High 59°, low 37°.
Pressure30.09 inHg
Wind12.6 mph NW
Humidity41%
Visibility—
Dew point26°
Thu, 2261° / 37°0
61 °
Meridian, Thursday, 22 October
Clear. High 61°, low 37°.
Pressure30.18 inHg
Wind5.2 mph NW
Humidity32%
Visibility—
Dew point21°
Fri, 2365° / 42°0
65 °
Meridian, Friday, 23 October
Mostly clear. High 65°, low 42°.
Pressure30.06 inHg
Wind7.4 mph SE
Humidity21%
Visibility—
Dew point19°
Sat, 2465° / 46°0
65 °
Meridian, Saturday, 24 October
Clear. High 65°, low 46°.
Pressure30.18 inHg
Wind13.5 mph NW
Humidity45%
Visibility—
Dew point37°
Sun, 2568° / 46°0
68 °
Meridian, Sunday, 25 October
Clear. High 68°, low 46°.
Pressure30.24 inHg
Wind8.5 mph S
Humidity35%
Visibility—
Dew point32°
Mon, 2672° / 48°0
72 °
Meridian, Monday, 26 October
Mostly clear. High 72°, low 48°.
Pressure30.09 inHg
Wind14.5 mph SE
Humidity31%
Visibility—
Dew point31°
Tue, 2773° / 52°0
73 °
Meridian, Tuesday, 27 October
Mostly clear. High 73°, low 52°.
Pressure29.88 inHg
Wind12.6 mph S
Humidity27%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2858° / 39°0.04
58 °
Meridian, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high58°
Average low39°
Average precipitation0.04 in
Chance of precipitation25%
Record high74° (1968)
Record low22° (1970)
Thu, 2956° / 38°0.04
56 °
Meridian, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.04 in
Chance of precipitation20%
Record high75° (1968)
Record low20° (1971)
Fri, 3056° / 36°0.02
56 °
Meridian, Friday, 30 October
Climate normal for this date — 60-year average.
Average high56°
Average low36°
Average precipitation0.02 in
Chance of precipitation15%
Record high73° (2008)
Record low16° (2019)
Sat, 3156° / 37°0.02
56 °
Meridian, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low37°
Average precipitation0.02 in
Chance of precipitation15%
Record high74° (1988)
Record low20° (2002)
Sun, 0156° / 37°0.03
56 °
Meridian, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high56°
Average low37°
Average precipitation0.03 in
Chance of precipitation18%
Record high72° (1965)
Record low20° (2019)
Mon, 0255° / 36°0.05
55 °
Meridian, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low36°
Average precipitation0.05 in
Chance of precipitation23%
Record high68° (1965)
Record low22° (2019)
Tue, 0355° / 35°0.02
55 °
Meridian, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low35°
Average precipitation0.02 in
Chance of precipitation12%
Record high70° (1983)
Record low23° (2002)
Wed, 0455° / 37°0.04
55 °
Meridian, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low37°
Average precipitation0.04 in
Chance of precipitation25%
Record high69° (1980)
Record low25° (1995)
Thu, 0555° / 36°0.04
55 °
Meridian, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low36°
Average precipitation0.04 in
Chance of precipitation25%
Record high73° (2020)
Record low22° (1971)
Fri, 0655° / 37°0.04
55 °
Meridian, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low37°
Average precipitation0.04 in
Chance of precipitation28%
Record high73° (1999)
Record low20° (1971)
Sat, 0753° / 37°0.04
53 °
Meridian, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.04 in
Chance of precipitation38%
Record high73° (1999)
Record low23° (2017)
Sun, 0852° / 34°0.06
52 °
Meridian, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.06 in
Chance of precipitation32%
Record high70° (2016)
Record low22° (1994)
Mon, 0951° / 34°0.06
51 °
Meridian, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.06 in
Chance of precipitation28%
Record high68° (2016)
Record low23° (2018)
Tue, 1051° / 34°0.04
51 °
Meridian, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.04 in
Chance of precipitation28%
Record high67° (2016)
Record low19° (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 Meridian, 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 Meridian, 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.