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As of 03:12 CDT

Weather in Siam, IA

47°Current weather

Siam, Thursday, 22 October, 03:12

Clear. Feels like 47°. High 78°, low 47°.

Pressure30.21 inHg
Wind0 mph N
Humidity100%
Visibility6.2 mi
Dew point48°

Two-week outlook for Siam, IA: week one averages a high of 70.5° and week two 59°, so week two runs 11.6° cooler than week one. Around 0.9 inches of precipitation are expected over the 14 days, across 1 wet days. The nearest weekend, October 24: 75°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 22 – October 28)70.5°50.8°0.0 in / 0 d—
2nd (October 29 – November 4)59°43.8°0.9 in / 1 d—

Weekend weather

Sat, October 24
Clear
75°58°
no precip.
Sun, October 25
Mostly clear
76°56°
no precip.
Sat, October 31
Light rain
65°54°
no precip.
Sun, November 1
Rain
59°49°
0.85 in
Fri, 2379° / 56°0Clear
79 °Clear

Siam, Friday, 23 October

Clear. High 79°, low 56°.

Pressure30.15 inHg
Wind12 mph SE
Humidity51%
Visibility6.2 mi
Dew point52°
Sat, 2475° / 58°0Clear
75 °Clear

Siam, Saturday, 24 October

Clear. High 75°, low 58°.

Pressure30.21 inHg
Wind10.4 mph S
Humidity49%
Visibility6.2 mi
Dew point51°
Sun, 2576° / 56°0Mostly clear
76 °Mostly clear

Siam, Sunday, 25 October

Mostly clear. High 76°, low 56°.

Pressure30.30 inHg
Wind6 mph S
Humidity55%
Visibility6.2 mi
Dew point54°
Mon, 2675° / 58°0.01Light rain
75 °Light rain

Siam, Monday, 26 October

Light rain. High 75°, low 58°.

Pressure30.24 inHg
Wind7.3 mph S
Humidity43%
Visibility—
Dew point47°
Tue, 2762° / 41°0.01Light rain
62 °Light rain

Siam, Tuesday, 27 October

Light rain. High 62°, low 41°.

Pressure30.24 inHg
Wind13.7 mph NW
Humidity79%
Visibility—
Dew point44°
Wed, 2848° / 39°0Overcast
48 °Overcast

Siam, Wednesday, 28 October

Overcast. High 48°, low 39°.

Pressure30.47 inHg
Wind12.6 mph N
Humidity50%
Visibility—
Dew point27°
Thu, 2955° / 35°0Clear
55 °Clear

Siam, Thursday, 29 October

Clear. High 55°, low 35°.

Pressure30.33 inHg
Wind12.7 mph S
Humidity49%
Visibility—
Dew point31°
Fri, 3061° / 42°0Overcast
61 °Overcast

Siam, Friday, 30 October

Overcast. High 61°, low 42°.

Pressure29.97 inHg
Wind21.6 mph S
Humidity50%
Visibility—
Dew point39°
Sat, 3165° / 54°0.01Light rain
65 °Light rain

Siam, Saturday, 31 October

Light rain. High 65°, low 54°.

Pressure29.74 inHg
Wind23.8 mph S
Humidity51%
Visibility—
Dew point45°
Sun, 0159° / 49°0.85Rain
59 °Rain

Siam, Sunday, 1 November

Rain. High 59°, low 49°.

Pressure29.85 inHg
Wind17.4 mph S
Humidity99%
Visibility—
Dew point56°
Mon, 0253° / 40°0Clear
53 °Clear

Siam, Monday, 2 November

Clear. High 53°, low 40°.

Pressure30.39 inHg
Wind12.9 mph NW
Humidity38%
Visibility—
Dew point25°
Tue, 0356° / 40°0Overcast
56 °Overcast

Siam, Tuesday, 3 November

Overcast. High 56°, low 40°.

Pressure30.24 inHg
Wind12.4 mph S
Humidity47%
Visibility—
Dew point34°
Wed, 0463° / 47°0Partly cloudy
63 °Partly cloudy

Siam, Wednesday, 4 November

Partly cloudy. High 63°, low 47°.

Pressure29.65 inHg
Wind18.6 mph SW
Humidity78%
Visibility—
Dew point49°

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 Siam, 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.