Monthly outlook for Firesteel, SD: average high 85.7°, average low 65.4°. That is 1.9° above the climate normal for August. Precipitation is expected on 7 days (about 2.5 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 19 August (98°), the coolest 14 August (58.5°).
85.7°/65.4°
Average high / low
+1.9°
Above normal
7 / 4
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
87.2°
82.3°
+2.7°
19 August – 28 August
83.1°
81.9°
+0.7°
29 August – 7 September
at normal
79.7°
—
August records over 66 years
102.2°7 August 2001All-time high
42.6°23 August 1966All-time low
Climate normals and records are computed from the nearest reference point — Timber Lake (10 mi).
Mon, 1096° / 64°0.05
96 °
Firesteel, Monday, 10 August
Light rain. High 96°, low 64°.
Pressure29.77 inHg
Wind14 mph SE
Humidity38%
Visibility6.2 mi
Dew point61°
Tue, 1189° / 61°0.01
89 °
Firesteel, Tuesday, 11 August
Light rain. High 89°, low 61°.
Pressure29.85 inHg
Wind12.2 mph NE
Humidity39%
Visibility6.2 mi
Dew point56°
Wed, 1292° / 65°0.03
92 °
Firesteel, Wednesday, 12 August
Light rain. High 92°, low 65°.
Pressure29.85 inHg
Wind8.8 mph E
Humidity32%
Visibility6.2 mi
Dew point55°
Thu, 1378° / 64°0.04
78 °
Firesteel, Thursday, 13 August
Light rain. High 78°, low 64°.
Pressure29.97 inHg
Wind16.1 mph S
Humidity46%
Visibility—
Dew point53°
Fri, 1469° / 59°0.02
69 °
Firesteel, Friday, 14 August
Light rain. High 69°, low 59°.
Pressure30.06 inHg
Wind18.9 mph SE
Humidity77%
Visibility—
Dew point57°
Sat, 1582° / 62°0.04
82 °
Firesteel, Saturday, 15 August
Light rain. High 82°, low 62°.
Pressure30.03 inHg
Wind11.8 mph S
Humidity52%
Visibility—
Dew point57°
Sun, 1689° / 62°0
89 °
Firesteel, Sunday, 16 August
Overcast. High 89°, low 62°.
Pressure30.12 inHg
Wind11.4 mph SE
Humidity29%
Visibility—
Dew point46°
Mon, 1793° / 67°0.37
93 °
Firesteel, Monday, 17 August
Rain. High 93°, low 67°.
Pressure29.83 inHg
Wind15.5 mph SE
Humidity50%
Visibility—
Dew point63°
Tue, 1896° / 76°0
96 °
Firesteel, Tuesday, 18 August
Overcast. High 96°, low 76°.
Pressure29.74 inHg
Wind8.7 mph W
Humidity26%
Visibility—
Dew point52°
Wed, 1998° / 75°0.01
98 °
Firesteel, Wednesday, 19 August
Light rain. High 98°, low 75°.
Pressure29.77 inHg
Wind12 mph N
Humidity30%
Visibility—
Dew point56°
Thu, 2085° / 70°0.02
85 °
Firesteel, Thursday, 20 August
Light rain. High 85°, low 70°.
Pressure30.00 inHg
Wind11.4 mph N
Humidity38%
Visibility—
Dew point48°
Fri, 2191° / 71°0.67
91 °
Firesteel, Friday, 21 August
Heavy rain. High 91°, low 71°.
Pressure29.83 inHg
Wind17.3 mph SE
Humidity48%
Visibility—
Dew point60°
Sat, 2279° / 66°0.15
79 °
Firesteel, Saturday, 22 August
Rain. High 79°, low 66°.
Pressure29.77 inHg
Wind18.2 mph SE
Humidity63%
Visibility—
Dew point63°
Sun, 2369° / 62°1.05
69 °
Firesteel, Sunday, 23 August
Heavy rain. High 69°, low 62°.
Pressure29.94 inHg
Wind15.2 mph NE
Humidity80%
Visibility—
Dew point61°
Mon, 2477° / 61°0.02
77 °
Firesteel, Monday, 24 August
Light rain. High 77°, low 61°.
Pressure30.03 inHg
Wind9.8 mph SE
Humidity69%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 62°0.02
82 °
Firesteel, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low62°
Average precipitation0.02 in
Chance of precipitation12%
Record high97° (2020)
Record low46° (1992)
Wed, 2681° / 61°0.05
81 °
Firesteel, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low61°
Average precipitation0.05 in
Chance of precipitation28%
Record high102° (1970)
Record low47° (2014)
Thu, 2782° / 61°0.07
82 °
Firesteel, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low61°
Average precipitation0.07 in
Chance of precipitation35%
Record high100° (1973)
Record low47° (1992)
Fri, 2882° / 61°0.06
82 °
Firesteel, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low61°
Average precipitation0.06 in
Chance of precipitation23%
Record high97° (1991)
Record low47° (1988)
Sat, 2982° / 61°0.04
82 °
Firesteel, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low61°
Average precipitation0.04 in
Chance of precipitation15%
Record high102° (2012)
Record low47° (1988)
Sun, 3082° / 60°0.04
82 °
Firesteel, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low60°
Average precipitation0.04 in
Chance of precipitation22%
Record high96° (1990)
Record low47° (1992)
Mon, 3180° / 60°0.06
80 °
Firesteel, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low60°
Average precipitation0.06 in
Chance of precipitation17%
Record high96° (1975)
Record low44° (1994)
Tue, 0180° / 59°0.04
80 °
Firesteel, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low59°
Average precipitation0.04 in
Chance of precipitation20%
Record high100° (2012)
Record low41° (1965)
Wed, 0280° / 60°0.09
80 °
Firesteel, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low60°
Average precipitation0.09 in
Chance of precipitation25%
Record high99° (1960)
Record low42° (1974)
Thu, 0380° / 59°0.03
80 °
Firesteel, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low59°
Average precipitation0.03 in
Chance of precipitation15%
Record high98° (2007)
Record low43° (1974)
Fri, 0480° / 59°0.06
80 °
Firesteel, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low59°
Average precipitation0.06 in
Chance of precipitation20%
Record high98° (1960)
Record low40° (1962)
Sat, 0579° / 58°0.06
79 °
Firesteel, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low58°
Average precipitation0.06 in
Chance of precipitation20%
Record high100° (1978)
Record low37° (1965)
Sun, 0679° / 57°0.04
79 °
Firesteel, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low57°
Average precipitation0.04 in
Chance of precipitation20%
Record high101° (1976)
Record low40° (2025)
Mon, 0777° / 56°0.08
77 °
Firesteel, Monday, 7 September
Climate normal for this date — 60-year average.
Average high77°
Average low56°
Average precipitation0.08 in
Chance of precipitation20%
Record high96° (2002)
Record low37° (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 Firesteel, SD 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 Firesteel, SD 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.