Monthly outlook for Costin, NE: average high 94.9°, average low 65.8°. That is 5.1° above the climate normal for August. Precipitation is expected on 6 days (about 1.0 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 11 August (103.2°), the coolest 14 August (59.7°).
94.9°/65.8°
Average high / low
+5.1°
Above normal
6 / 3
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
93.7°
85.5°
+4.5°
19 August – 28 August
96.9°
85.7°
+6.2°
29 August – 7 September
at normal
83.7°
—
August records over 66 years
104.2°4 August 2024All-time high
42.4°27 August 1992All-time low
Climate normals and records are computed from the nearest reference point — Mitchell (7 mi).
Mon, 10101° / 71°0
101 °
Costin, Monday, 10 August
Clear. High 101°, low 71°.
Pressure29.74 inHg
Wind7.7 mph NW
Humidity15%
Visibility6.2 mi
Dew point42°
Tue, 11103° / 66°0
103 °
Costin, Tuesday, 11 August
Overcast. High 103°, low 66°.
Pressure29.74 inHg
Wind7.3 mph NW
Humidity16%
Visibility6.2 mi
Dew point44°
Wed, 1298° / 62°0.05
98 °
Costin, Wednesday, 12 August
Light rain. High 98°, low 62°.
Pressure29.77 inHg
Wind11.8 mph SE
Humidity27%
Visibility6.2 mi
Dew point53°
Thu, 1378° / 65°0.19
78 °
Costin, Thursday, 13 August
Light rain. High 78°, low 65°.
Pressure29.83 inHg
Wind18.9 mph E
Humidity61%
Visibility—
Dew point61°
Fri, 1485° / 60°0.07
85 °
Costin, Friday, 14 August
Light rain. High 85°, low 60°.
Pressure29.88 inHg
Wind19.3 mph SE
Humidity42%
Visibility—
Dew point55°
Sat, 1586° / 64°0.01
86 °
Costin, Saturday, 15 August
Light rain. High 86°, low 64°.
Pressure30.03 inHg
Wind12.7 mph NE
Humidity43%
Visibility—
Dew point55°
Sun, 1689° / 64°0.13
89 °
Costin, Sunday, 16 August
Light rain. High 89°, low 64°.
Pressure30.06 inHg
Wind14.9 mph SE
Humidity45%
Visibility—
Dew point57°
Mon, 1798° / 66°0
98 °
Costin, Monday, 17 August
Clear. High 98°, low 66°.
Pressure29.88 inHg
Wind15.9 mph S
Humidity25%
Visibility—
Dew point49°
Tue, 1899° / 71°0.01
99 °
Costin, Tuesday, 18 August
Light rain. High 99°, low 71°.
Pressure29.80 inHg
Wind28.5 mph W
Humidity19%
Visibility—
Dew point44°
Wed, 19101° / 70°0
101 °
Costin, Wednesday, 19 August
Overcast. High 101°, low 70°.
Pressure29.80 inHg
Wind35.3 mph W
Humidity16%
Visibility—
Dew point41°
Thu, 2097° / 66°0.44
97 °
Costin, Thursday, 20 August
Rain. High 97°, low 66°.
Pressure29.91 inHg
Wind22.7 mph NW
Humidity26%
Visibility—
Dew point48°
Fri, 2198° / 67°0.09
98 °
Costin, Friday, 21 August
Light rain. High 98°, low 67°.
Pressure29.80 inHg
Wind17 mph S
Humidity25%
Visibility—
Dew point49°
Sat, 2296° / 68°0.02
96 °
Costin, Saturday, 22 August
Light rain. High 96°, low 68°.
Pressure29.80 inHg
Wind18.1 mph NW
Humidity24%
Visibility—
Dew point46°
Sun, 2396° / 67°0
96 °
Costin, Sunday, 23 August
Light rain. High 96°, low 67°.
Pressure29.83 inHg
Wind8.8 mph SW
Humidity23%
Visibility—
Dew point44°
Mon, 2493° / 62°0.01
93 °
Costin, Monday, 24 August
Light rain. High 93°, low 62°.
Pressure29.88 inHg
Wind17.3 mph SE
Humidity35%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2586° / 61°0.02
86 °
Costin, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high86°
Average low61°
Average precipitation0.02 in
Chance of precipitation18%
Record high100° (2020)
Record low48° (1975)
Wed, 2686° / 61°0.04
86 °
Costin, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high86°
Average low61°
Average precipitation0.04 in
Chance of precipitation30%
Record high98° (1994)
Record low51° (1975)
Thu, 2785° / 61°0.04
85 °
Costin, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low61°
Average precipitation0.04 in
Chance of precipitation23%
Record high99° (2010)
Record low42° (1992)
Fri, 2885° / 60°0.02
85 °
Costin, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low60°
Average precipitation0.02 in
Chance of precipitation15%
Record high98° (2012)
Record low46° (2004)
Sat, 2985° / 60°0.06
85 °
Costin, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low60°
Average precipitation0.06 in
Chance of precipitation20%
Record high100° (2012)
Record low48° (2006)
Sun, 3085° / 60°0.03
85 °
Costin, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low60°
Average precipitation0.03 in
Chance of precipitation20%
Record high100° (1985)
Record low45° (1964)
Mon, 3184° / 60°0.03
84 °
Costin, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low60°
Average precipitation0.03 in
Chance of precipitation15%
Record high100° (1960)
Record low47° (1962)
Tue, 0184° / 59°0.06
84 °
Costin, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low59°
Average precipitation0.06 in
Chance of precipitation18%
Record high97° (2022)
Record low45° (1965)
Wed, 0284° / 59°0.03
84 °
Costin, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low59°
Average precipitation0.03 in
Chance of precipitation20%
Record high99° (2019)
Record low43° (2006)
Thu, 0384° / 59°0.02
84 °
Costin, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low59°
Average precipitation0.02 in
Chance of precipitation13%
Record high98° (2024)
Record low40° (1974)
Fri, 0484° / 58°0.03
84 °
Costin, Friday, 4 September
Climate normal for this date — 60-year average.
Average high84°
Average low58°
Average precipitation0.03 in
Chance of precipitation13%
Record high100° (1960)
Record low43° (1968)
Sat, 0583° / 58°0.03
83 °
Costin, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low58°
Average precipitation0.03 in
Chance of precipitation7%
Record high102° (2020)
Record low44° (1968)
Sun, 0683° / 58°0.03
83 °
Costin, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low58°
Average precipitation0.03 in
Chance of precipitation18%
Record high99° (2022)
Record low40° (2025)
Mon, 0781° / 57°0.02
81 °
Costin, Monday, 7 September
Climate normal for this date — 60-year average.
Average high81°
Average low57°
Average precipitation0.02 in
Chance of precipitation15%
Record high101° (2022)
Record low44° (2010)
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 Costin, NE 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 Costin, NE 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.