As of 06:48 PDT

Weather in Delta, ID

61°

Delta, Friday, 9 October, 06:48

Overcast. Feels like 60°. High 63°, low 38°.

Pressure29.68 inHg

Wind1.2 mph SE

Humidity64%

Visibility6.2 mi

Dew point49°

See detailed hourly forecast

Monthly outlook for Delta, ID: average high 57.7°, average low 35.9°. That is 0.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 24 October (69.9°), the coolest 12 October (24.3°).

57.7°/35.9°

Average high / low

+0.5°

Above normal

1 / 6

Wet days / normal

0.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	55.6°	58°	-1.4°
19 October – 28 October	61.3°	53.4°	+4.4°
29 October – 7 November	at normal	47.1°	—

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).

Sat, 1051° / 29°

51 °

Delta, Saturday, 10 October

Mostly clear. High 51°, low 29°.

Pressure29.80 inHg

Wind3.5 mph W

Humidity52%

Visibility6.2 mi

Dew point28°

Sun, 1137° / 33°

0.22

37 °

Delta, Sunday, 11 October

Snow. High 37°, low 33°.

Pressure30.00 inHg

Wind13.7 mph NE

Humidity79%

Visibility4.2 mi

Dew point25°

Mon, 1248° / 24°

48 °

Delta, Monday, 12 October

Clear. High 48°, low 24°.

Pressure30.06 inHg

Wind3.2 mph NE

Humidity55%

Visibility6.2 mi

Dew point26°

Tue, 1350° / 31°

50 °

Delta, Tuesday, 13 October

Clear. High 50°, low 31°.

Pressure30.18 inHg

Wind4.3 mph SW

Humidity56%

Visibility—

Dew point29°

Wed, 1453° / 32°

53 °

Delta, Wednesday, 14 October

Overcast. High 53°, low 32°.

Pressure30.21 inHg

Wind7.9 mph SW

Humidity50%

Visibility—

Dew point28°

Thu, 1560° / 36°

60 °

Delta, Thursday, 15 October

Mostly clear. High 60°, low 36°.

Pressure30.30 inHg

Wind4.8 mph E

Humidity41%

Visibility—

Dew point29°

Fri, 1661° / 35°

61 °

Delta, Friday, 16 October

Overcast. High 61°, low 35°.

Pressure30.45 inHg

Wind5.7 mph E

Humidity46%

Visibility—

Dew point28°

Sat, 1764° / 40°

64 °

Delta, Saturday, 17 October

Partly cloudy. High 64°, low 40°.

Pressure30.15 inHg

Wind3.2 mph SW

Humidity34%

Visibility—

Dew point30°

Sun, 1867° / 45°

67 °

Delta, Sunday, 18 October

Overcast. High 67°, low 45°.

Pressure29.97 inHg

Wind3.4 mph W

Humidity34%

Visibility—

Dew point32°

Mon, 1955° / 38°

55 °

Delta, Monday, 19 October

Partly cloudy. High 55°, low 38°.

Pressure29.94 inHg

Wind9.3 mph SW

Humidity45%

Visibility—

Dew point31°

Tue, 2055° / 36°

55 °

Delta, Tuesday, 20 October

Partly cloudy. High 55°, low 36°.

Pressure30.24 inHg

Wind5.1 mph W

Humidity51%

Visibility—

Dew point32°

Wed, 2159° / 37°

59 °

Delta, Wednesday, 21 October

Overcast. High 59°, low 37°.

Pressure30.09 inHg

Wind13.3 mph W

Humidity39%

Visibility—

Dew point28°

Thu, 2261° / 36°

61 °

Delta, Thursday, 22 October

Partly cloudy. High 61°, low 36°.

Pressure30.30 inHg

Wind3.8 mph E

Humidity38%

Visibility—

Dew point27°

Fri, 2369° / 38°

69 °

Delta, Friday, 23 October

Clear. High 69°, low 38°.

Pressure30.09 inHg

Wind3.8 mph E

Humidity23%

Visibility—

Dew point21°

Sat, 2470° / 45°

70 °

Delta, Saturday, 24 October

Clear. High 70°, low 45°.

Pressure30.00 inHg

Wind3.6 mph W

Humidity19%

Visibility—

Dew point20°

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

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)

Sat, 0745° / 32°

0.24

45 °

Delta, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high45°

Average low32°

Average precipitation0.24 in

Chance of precipitation58%

Record high62° (1999)

Record low10° (1961)

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.