As of 10:57 PDT

Weather in Delta, ID

70°

Delta, Thursday, 8 October, 10:57

Partly cloudy. Feels like 69°. High 72°, low 38°.

Pressure30.06 inHg

Wind2.4 mph SW

Humidity45%

Visibility6.2 mi

Dew point52°

See detailed hourly forecast

Monthly outlook for Delta, ID: average high 54.9°, average low 34.8°. That is 1.4° below the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 8 October (71.6°), the coolest 12 October (28.2°).

54.9°/34.8°

Average high / low

−1.4°

Below normal

4 / 6

Wet days / normal

0.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	54.7°	58.6°	-2.1°
18 October – 27 October	55.3°	54.1°	+0.7°
28 October – 6 November	at normal	47.6°	—

October records over 66 years

86.4°1 October 1992All-time high

3.9°21 October 1996All-time low

Climate normals and records are computed from the nearest reference point — Prichard (4 mi).

Fri, 0961° / 38°

0.01

61 °

Delta, Friday, 9 October

Light rain. High 61°, low 38°.

Pressure29.62 inHg

Wind12.4 mph SW

Humidity41%

Visibility6.2 mi

Dew point38°

Sat, 1052° / 34°

52 °

Delta, Saturday, 10 October

Mostly clear. High 52°, low 34°.

Pressure29.77 inHg

Wind2.6 mph W

Humidity49%

Visibility6.2 mi

Dew point29°

Sun, 1140° / 33°

0.07

40 °

Delta, Sunday, 11 October

Light snow. High 40°, low 33°.

Pressure29.97 inHg

Wind15.2 mph NE

Humidity68%

Visibility6.2 mi

Dew point23°

Mon, 1252° / 28°

52 °

Delta, Monday, 12 October

Partly cloudy. High 52°, low 28°.

Pressure29.97 inHg

Wind7.8 mph NE

Humidity55%

Visibility—

Dew point28°

Tue, 1359° / 30°

59 °

Delta, Tuesday, 13 October

Clear. High 59°, low 30°.

Pressure29.97 inHg

Wind3.5 mph SW

Humidity43%

Visibility—

Dew point28°

Wed, 1443° / 36°

0.3

43 °

Delta, Wednesday, 14 October

Rain. High 43°, low 36°.

Pressure29.85 inHg

Wind7 mph SW

Humidity64%

Visibility—

Dew point31°

Thu, 1551° / 34°

51 °

Delta, Thursday, 15 October

Partly cloudy. High 51°, low 34°.

Pressure30.39 inHg

Wind4 mph NE

Humidity36%

Visibility—

Dew point20°

Fri, 1658° / 31°

58 °

Delta, Friday, 16 October

Clear. High 58°, low 31°.

Pressure30.42 inHg

Wind3.7 mph E

Humidity34%

Visibility—

Dew point21°

Sat, 1759° / 36°

59 °

Delta, Saturday, 17 October

Overcast. High 59°, low 36°.

Pressure30.18 inHg

Wind3.2 mph SW

Humidity32%

Visibility—

Dew point23°

Sun, 1862° / 39°

62 °

Delta, Sunday, 18 October

Partly cloudy. High 62°, low 39°.

Pressure30.09 inHg

Wind3.4 mph S

Humidity30%

Visibility—

Dew point25°

Mon, 1953° / 37°

53 °

Delta, Monday, 19 October

Partly cloudy. High 53°, low 37°.

Pressure30.24 inHg

Wind6.4 mph SW

Humidity55%

Visibility—

Dew point35°

Tue, 2059° / 38°

59 °

Delta, Tuesday, 20 October

Overcast. High 59°, low 38°.

Pressure30.30 inHg

Wind4.2 mph SW

Humidity45%

Visibility—

Dew point33°

Wed, 2157° / 36°

57 °

Delta, Wednesday, 21 October

Partly cloudy. High 57°, low 36°.

Pressure30.39 inHg

Wind5.2 mph W

Humidity31%

Visibility—

Dew point21°

Thu, 2254° / 36°

0.17

54 °

Delta, Thursday, 22 October

Light rain. High 54°, low 36°.

Pressure30.00 inHg

Wind6.7 mph SW

Humidity24%

Visibility—

Dew point14°

Fri, 2345° / 32°

0.19

45 °

Delta, Friday, 23 October

Snow. High 45°, low 32°.

Pressure29.97 inHg

Wind4.3 mph N

Humidity67%

Visibility—

Dew point31°

From day 17 onward the outlook is built from 60-year climate statistics

Sat, 2453° / 36°

0.11

53 °

Delta, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high53°

Average low36°

Average precipitation0.11 in

Chance of precipitation42%

Record high69° (1986)

Record low20° (2020)

Sun, 2553° / 36°

0.14

53 °

Delta, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high53°

Average low36°

Average precipitation0.14 in

Chance of precipitation43%

Record high71° (2005)

Record low8° (2020)

Mon, 2651° / 36°

0.16

51 °

Delta, Monday, 26 October

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.16 in

Chance of precipitation47%

Record high70° (1986)

Record low6° (2020)

Tue, 2750° / 34°

0.14

50 °

Delta, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high50°

Average low34°

Average precipitation0.14 in

Chance of precipitation48%

Record high67° (1965)

Record low11° (1975)

Wed, 2850° / 34°

0.15

50 °

Delta, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high50°

Average low34°

Average precipitation0.15 in

Chance of precipitation52%

Record high64° (1962)

Record low17° (1970)

Thu, 2948° / 33°

0.17

48 °

Delta, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.17 in

Chance of precipitation50%

Record high69° (1962)

Record low4° (1961)

Fri, 3048° / 33°

0.14

48 °

Delta, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.14 in

Chance of precipitation45%

Record high67° (2008)

Record low11° (2002)

Sat, 3147° / 34°

0.2

47 °

Delta, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high47°

Average low34°

Average precipitation0.2 in

Chance of precipitation53%

Record high66° (1988)

Record low7° (1996)

Sun, 0148° / 33°

0.18

48 °

Delta, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.18 in

Chance of precipitation47%

Record high65° (1965)

Record low1° (1984)

Mon, 0247° / 33°

0.2

47 °

Delta, Monday, 2 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.2 in

Chance of precipitation48%

Record high66° (1981)

Record low9° (1991)

Tue, 0348° / 33°

0.12

48 °

Delta, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.12 in

Chance of precipitation45%

Record high62° (1965)

Record low12° (1994)

Wed, 0447° / 34°

0.26

47 °

Delta, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high47°

Average low34°

Average precipitation0.26 in

Chance of precipitation57%

Record high66° (1975)

Record low7° (1961)

Thu, 0547° / 33°

0.19

47 °

Delta, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.19 in

Chance of precipitation62%

Record high67° (1975)

Record low0° (1961)

Fri, 0646° / 32°

0.22

46 °

Delta, Friday, 6 November

Climate normal for this date — 60-year average.

Average high46°

Average low32°

Average precipitation0.22 in

Chance of precipitation65%

Record high64° (2012)

Record low0° (1971)

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 Delta, 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 Delta, 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.