10-day forecast for Heppner, SD: 63° to 103°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
103°
Best day: Monday, August 10
81° · 0.06 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0993° / 69°0
Morning76°feels 74°
Afternoon92°feels 88°
Evening84°feels 82°
Overnight72°feels 70°
93 °
Heppner, Sunday, 9 August
Partly cloudy. High 93°, low 69°.
Pressure29.80 inHg
Wind9.1 mph E
Humidity19%
Visibility6.2 mi
Dew point43°
Mon, 10103° / 68°0
Morning77°feels 76°
Afternoon100°feels 95°
Evening90°feels 86°
Overnight72°feels 70°
103 °
Heppner, Monday, 10 August
Mostly clear. High 103°, low 68°.
Pressure29.74 inHg
Wind4.8 mph SW
Humidity20%
Visibility6.2 mi
Dew point46°
Tue, 1197° / 67°0
Morning73°feels 73°
Afternoon96°feels 93°
Evening85°feels 83°
Overnight70°feels 70°
97 °
Heppner, Tuesday, 11 August
Overcast. High 97°, low 67°.
Pressure29.80 inHg
Wind11.1 mph E
Humidity27%
Visibility6.2 mi
Dew point53°
Wed, 1298° / 66°0
Morning74°feels 73°
Afternoon96°feels 92°
Evening80°feels 80°
Overnight70°feels 69°
98 °
Heppner, Wednesday, 12 August
Overcast. High 98°, low 66°.
Pressure29.74 inHg
Wind11.1 mph SE
Humidity27%
Visibility6.2 mi
Dew point53°
Thu, 1381° / 63°0.06
Morning67°feels 67°
Afternoon76°feels 76°
Evening79°feels 79°
Overnight70°feels 70°
81 °
Heppner, Thursday, 13 August
Light rain. High 81°, low 63°.
Pressure30.00 inHg
Wind20.6 mph E
Humidity58%
Visibility—
Dew point57°
Fri, 1493° / 66°0.02
Morning72°feels 72°
Afternoon88°feels 86°
Evening86°feels 84°
Overnight74°feels 74°
93 °
Heppner, Friday, 14 August
Light rain. High 93°, low 66°.
Pressure29.88 inHg
Wind25.4 mph S
Humidity34%
Visibility—
Dew point53°
Sat, 1593° / 69°0.11
Morning74°feels 74°
Afternoon87°feels 85°
Evening90°feels 87°
Overnight79°feels 79°
93 °
Heppner, Saturday, 15 August
Light rain. High 93°, low 69°.
Pressure29.97 inHg
Wind16.3 mph E
Humidity35%
Visibility—
Dew point53°
Sun, 1698° / 72°0.03
Morning78°feels 77°
Afternoon94°feels 91°
Evening93°feels 90°
Overnight81°feels 80°
98 °
Heppner, Sunday, 16 August
Light rain. High 98°, low 72°.
Pressure29.91 inHg
Wind16.3 mph W
Humidity22%
Visibility—
Dew point47°
Mon, 1799° / 73°0
Morning79°feels 77°
Afternoon94°feels 91°
Evening97°feels 93°
Overnight82°feels 81°
99 °
Heppner, Monday, 17 August
Overcast. High 99°, low 73°.
Pressure29.91 inHg
Wind14.3 mph NW
Humidity27%
Visibility—
Dew point51°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Heppner, SD around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.