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As of 02:25 CDT

Weather in Alton, IA

66°Current weather

Alton, Sunday, 9 August, 02:25

Clear. Feels like 67°. High 85°, low 66°.

Pressure29.85 inHg
Wind7.5 mph SE
Humidity93%
Visibility6.2 mi
Dew point64°

Two-week outlook for Alton, IA: week one averages a high of 81.5° and week two 89.9°, so week two runs 8.4° warmer than week one. Around 2.1 inches of precipitation are expected over the 14 days, across 6 wet days. The nearest weekend, August 9: 85°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)81.5°63.3°1.9 in / 4 d—
2nd (August 16 – August 22)89.9°66.2°0.2 in / 2 d—

Weekend weather

Sun, August 9
Mostly clear
85°66°
no precip.
Sat, August 15
Overcast
72°61°
no precip.
Sun, August 16
Overcast
82°65°
no precip.
Sat, August 22
Overcast
97°69°
no precip.
Mon, 1089° / 64°0.43Heavy rain
89 °Heavy rain

Alton, Monday, 10 August

Heavy rain. High 89°, low 64°.

Pressure29.85 inHg
Wind4.8 mph SE
Humidity44%
Visibility6.2 mi
Dew point61°
Tue, 1196° / 68°0.01Light rain
96 °Light rain

Alton, Tuesday, 11 August

Light rain. High 96°, low 68°.

Pressure29.77 inHg
Wind11.3 mph NE
Humidity42%
Visibility6.2 mi
Dew point64°
Wed, 1292° / 65°0.18Light rain
92 °Light rain

Alton, Wednesday, 12 August

Light rain. High 92°, low 65°.

Pressure29.88 inHg
Wind12.3 mph E
Humidity38%
Visibility6.2 mi
Dew point57°
Thu, 1369° / 60°1.2Heavy rain
69 °Heavy rain

Alton, Thursday, 13 August

Heavy rain. High 69°, low 60°.

Pressure30.03 inHg
Wind13.8 mph NE
Humidity91%
Visibility—
Dew point59°
Fri, 1468° / 59°0.08Light rain
68 °Light rain

Alton, Friday, 14 August

Light rain. High 68°, low 59°.

Pressure30.12 inHg
Wind11.3 mph E
Humidity72%
Visibility—
Dew point57°
Sat, 1572° / 61°0Overcast
72 °Overcast

Alton, Saturday, 15 August

Overcast. High 72°, low 61°.

Pressure30.15 inHg
Wind9.5 mph SE
Humidity86%
Visibility—
Dew point61°
Sun, 1682° / 65°0Overcast
82 °Overcast

Alton, Sunday, 16 August

Overcast. High 82°, low 65°.

Pressure30.12 inHg
Wind8.8 mph SW
Humidity56%
Visibility—
Dew point61°
Mon, 1788° / 63°0Mostly clear
88 °Mostly clear

Alton, Monday, 17 August

Mostly clear. High 88°, low 63°.

Pressure30.03 inHg
Wind11.9 mph S
Humidity48%
Visibility—
Dew point60°
Tue, 1896° / 67°0Partly cloudy
96 °Partly cloudy

Alton, Tuesday, 18 August

Partly cloudy. High 96°, low 67°.

Pressure29.80 inHg
Wind13.8 mph S
Humidity49%
Visibility—
Dew point65°
Wed, 1992° / 72°0Overcast
92 °Overcast

Alton, Wednesday, 19 August

Overcast. High 92°, low 72°.

Pressure29.74 inHg
Wind13.4 mph SE
Humidity44%
Visibility—
Dew point64°
Thu, 2094° / 65°0.13Light rain
94 °Light rain

Alton, Thursday, 20 August

Light rain. High 94°, low 65°.

Pressure29.85 inHg
Wind12.8 mph N
Humidity36%
Visibility—
Dew point60°
Fri, 2180° / 62°0.07Light rain
80 °Light rain

Alton, Friday, 21 August

Light rain. High 80°, low 62°.

Pressure29.91 inHg
Wind10 mph E
Humidity58%
Visibility—
Dew point59°
Sat, 2297° / 69°0Overcast
97 °Overcast

Alton, Saturday, 22 August

Overcast. High 97°, low 69°.

Pressure29.71 inHg
Wind13.3 mph E
Humidity44%
Visibility—
Dew point64°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Alton, IA, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.